Tabla tabularx larga: 3 errores diferentes al compilar en TeXstudio

Tabla tabularx larga: 3 errores diferentes al compilar en TeXstudio

En un documento extenso tengo varias tablas que ocupan más de una página. La mayoría de ellos contienen mucho texto, por lo que estoy usando tabularxel paquete para tener la distribución correcta del ancho de las columnas. Hice esto siguiendo el consejo de otra pregunta de aquí (no puedo encontrarlo ahora) usando ltablexel paquete y tengo el siguiente documento. (ejemplo)

\documentclass[12pt,a4paper,twoside,table]{report}

\usepackage{textcomp}                               
\usepackage{lmodern}                                
\usepackage{helvet}                                 
\usepackage[T1]{fontenc}                            
\usepackage[english]{babel}                         
\usepackage[utf8]{inputenc}                             
     \usepackage[]{xcolor}                  
     \definecolor{steelblue}{RGB}{70,130,180}
    \usepackage{tabularx}    
\usepackage[labelfont=bf,textfont=normal,justification=justified,singlelinecheck=false]{caption}    
    \usepackage{ltablex}

    \begin{document}

\footnotesize
\renewcommand\arraystretch{1.25} 
\begin{tabularx}{\textwidth}{
     >{\setlength\hsize{0.5  \hsize}\centering}X
     >{\setlength\hsize{0.15  \hsize}\centering}X
     >{\setlength\hsize{0.17 \hsize}\centering}X
     >{\setlength\hsize{0.08 \hsize}\centering}X
     >{\setlength\hsize{0.1 \hsize}\centering}X}  
     \caption{\small Sample caption.} \\
     \label{tab:qfd}
\rowcolor{steelblue} \textcolor{white}{Quality Characteristics  ( Requirements)} & \textcolor{white}{Minimize, Maximize, or Target}  & \textcolor{white}{Max Relationship}  & \textcolor{white}{Requirement  Weight} & \textcolor{white}{Relative Weight}   \tabularnewline
Possibility of Automation                                             & maximize                                                                & 9                                                                  & 14,64               & 1,14\%                                  \tabularnewline
Curling                                                               & minimize                                                                & 1                                                                  & 1,50                & 0,12\%                                  \tabularnewline
Young's modulus                                                       & minimize                                                                & 3                                                                  & 10,26               & 0,80\%                                  \tabularnewline
Peel-off adhesion                                                     & maximize                                                                & 9                                                                  & 47,62               & 3,72\%                             \tabularnewline
Presence of characteristic feature                                    &target                                                               & 1                                                                  & 1,50                & 0,12\%                                  \tabularnewline
Substrate preparation time                                            & minimize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Number of steps                                                       & minimize                                                                & 3                                                                  & 5,13                & 0,40\%                                  \tabularnewline
time of application                                                   & minimize                                                                & 9                                                                  & 19,89               & 1,55\%                                  \tabularnewline
Film preparation time                                                 & minimize                                                                & 3                                                                  & 5,13                & 0,40\%                                  \tabularnewline
Equipment Cost                                                        & minimize                                                                & 3                                                                  & 4,50                & 0,35\%                                  \tabularnewline
Consumables cost per hour                                             & minimize                                                                & 9                                                                  & 13,51               & 1,05\%                                  \tabularnewline
Material cost per area                                                & minimize                                                                & 9                                                                  & 13,89               & 1,08\%                                  \tabularnewline
Wetting                                                               & minimize                                                                & 9                                                                  & 28,44               & 2,22\%                                  \tabularnewline
Maximum Heat Absorption                                               & minimize                                                                & 9                                                                  & 14,14               & 1,10\%                                  \tabularnewline
Stain resistance                                                      & maximize                                                                & 9                                                                  & 34,28               & 2,67\%                                  \tabularnewline
Surface texture                                                       &target                                                               & 9                                                                  & 85,20               & 6,65\%                                  \tabularnewline
Area of residue left                                                  & minimize                                                                & 9                                                                  & 16,51               & 1,29\%                                  \tabularnewline
Self-healing properties                                               &target                                                               & 9                                                                  & 22,27               & 1,74\%                                  \tabularnewline
Ability of repair with DIY paint repair kits (decorative only)        &target                                                               & 3                                                                  & 5,00                & 0,39\%                                  \tabularnewline
Polishing quality                                                     & maximize                                                                & 3                                                                  & 5,00                & 0,39\%                                  \tabularnewline
Scratch resistance                                                    & maximize                                                                & 9                                                                  & 34,15               & 2,66\%                                  \tabularnewline
Edge Roughness                                                        & minimize                                                                & 9                                                                  & 38,78               & 3,03\%                                  \tabularnewline
Presence of adhesive                                                  &target                                                               & 9                                                                  & 16,51               & 1,29\%                                  \tabularnewline
Cling adhesion                                                        &target                                                               & 3                                                                  & 7,51                & 0,59\%                                  \tabularnewline
Opacity                                                               & maximize                                                                & 9                                                                  & 15,80               & 1,23\%                                  \tabularnewline
Colour deviation                                                      & minimize                                                                & 9                                                                  & 76,19               & 5,94\%                                  \tabularnewline
Thickness                                                             & minimize                                                                & 9                                                                  & 29,98               & 2,34\%                                  \tabularnewline
Edge visibility                                                       & minimize                                                                & 9                                                                  & 22,77               & 1,78\%                                  \tabularnewline
Gloss                                                                 &target                                                               & 9                                                                  & 55,80               & 4,35\%                                  \tabularnewline
Transmittance of protective film                                      & maximize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Presence of bubbles                                                   &target                                                               & 9                                                                  & 18,02               & 1,41\%                                  \tabularnewline
Features supporting bubble-free application                           &target                                                               & 3                                                                  & 6,01                & 0,47\%                                  \tabularnewline
Orange peel look                                                      &target                                                             & 9                                                                  & 18,02               & 1,41\%                                  \tabularnewline
Variation in surface roughness                                        & minimize                                                                & 9                                                                  & 11,63               & 0,91\%                                  \tabularnewline
Rubbing wear resistance                                               & maximize                                                                & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Reactivity with chemical substances                                   &target                                                              & 9                                                                  & 39,41               & 3,07\%                                  \tabularnewline
Abrasion Resistance                                                   & maximize                                                                & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Nano-scratch resistance                                               & maximize                                                                & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Elongation                                                            &target                                                               & 9                                                                  & 23,52               & 1,83\%                                  \tabularnewline
Stone chipping resistance                                             & maximize                                                                & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Impact toughness                                                      & maximize                                                                & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Shear adhesion                                                        & maximize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Edge adhesion                                                         & maximize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Pressure adhesion                                                     & maximize                                                                & 3                                                                  & 5,13                & 0,40\%                                  \tabularnewline
Surface Energy                                                        & maximize                                                                & 9                                                                  & 18,39               & 1,43\%                                  \tabularnewline
Possibility to apply custom colour                                    &target                                                              & 9                                                                  & 14,64               & 1,14\%                                 \tabularnewline
Printability                                                          &target                                                               & 3                                                                  & 4,88                & 0,38\%                                  \tabularnewline
Possible to store in production area                                  &target                                                               & 9                                                                  & 12,39               & 0,97\%                                  \tabularnewline
Colour changing properties                                            &target                                                               & 9                                                                  & 9,76                & 0,76\%                                  \tabularnewline
Thermal conductivity                                                  &target                                                               & 9                                                                  & 14,39               & 1,12\%                                  \tabularnewline
Thermal expansion coefficient                                         &target                                                               & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Minimum operating temperature                                         &target                                                               & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Maximum operating temperature                                         &target                                                               & 9                                                                  & 20,52               & 1,60\%                                  \tabularnewline
Hardness                                                              & maximize                                                                & 3                                                                  & 5,13                & 0,40\%                                  \tabularnewline
Change in toughness per time                                          & minimize                                                                & 3                                                                  & 5,13                & 0,40\%                                  \tabularnewline
Gloss loss over time                                                  & minimize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Corrosion resistance                                                  & maximize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Water absorption                                                      & maximize                                                                & 9                                                                  & 29,23               & 2,28\%                                  \tabularnewline
Air tightness                                                         & maximize                                                                & 3                                                                  & 5,75                & 0,45\%                                  \tabularnewline
Solubility in water                                                   &target                                                               & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Shrinkage                                                             & minimize                                                               & 9                                                                  & 17,26               & 1,35\%                                  \tabularnewline
Yellowing                                                             & minimize                                                                & 9                                                                  & 18,02               & 1,41\%                                  \tabularnewline
Presence of toxic substances                                          &target                                                               & 9                                                                  & 18,77               & 1,46\%                                  \tabularnewline
Toxicity after disposal                                               &target                                                               & 9                                                                  & 18,77               & 1,46\%                                  \tabularnewline
Flammability                                                          &target                                                               & 9                                                                  & 18,77               & 1,46\%                                  \tabularnewline
Percentage content of recyclable materials                            & maximize                                                                & 9                                                                  & 16,51               & 1,29\%                                  \tabularnewline
Presence of standard Toxic substances                                 &target                                                               & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Friction drag coefficient                                             & minimize                                                                & 9                                                                  & 9,38                & 0,73\%                                  \tabularnewline
Mass per area                                                         & minimize                                                                & 9                                                                  & 13,14               & 1,02\%                                  \tabularnewline
Usage of special or specific tools                                    &target                                                               & 3                                                                  & 3,50                & 0,27\%                                \tabularnewline \hline
\end{tabularx}

\end{document}

Ahora, hasta hace poco he estado trabajando principalmente con ShareLaTeX, que pudo compilar el documento y mostrarme los resultados.

Sin embargo, ahora estoy cambiando a TeXstudio y, cuando intento compilar la tabla allí, el registro muestra los errores que se muestran a continuación. Al regresar a ShareLaTeX, descubrí que también muestra los mismos errores, pero puede mostrar el resultado y el resultado es satisfactorio.

    ! LaTeX Error: Something's wrong--perhaps a missing \item.

    See the LaTeX manual or LaTeX Companion for explanation.
    Type  H <return>  for immediate help.
     ...                                              

    l.101 \end{tabularx}

    Try typing  <return>  to proceed.
    If that doesn't work, type  X <return>  to quit.



    ! Misplaced \noalign.
    \rowcolor ->\noalign 
                         {\ifnum 0=`}\fi \global \let \CT@do@color \CT@@do@color...
    l.101 \end{tabularx}

    I expect to see \noalign only after the \cr of
    an alignment. Proceed, and I'll ignore this case.

    ! LaTeX Error: There's no line here to end.

    See the LaTeX manual or LaTeX Companion for explanation.
    Type  H <return>  for immediate help.
     ...                                              

    l.101 \end{tabularx}

    Your command was ignored.
    Type  I <command> <return>  to replace it with another command,
    or  <return>  to continue without it.

! LaTeX Error: There's no line here to end.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              

l.101 \end{tabularx}

Your command was ignored.
Type  I <command> <return>  to replace it with another command,
or  <return>  to continue without it.

Estos errores se repiten varias veces; Solo copié parte del registro sin que se repitan. Tengo al menos otras cuatro tablas como esta y en cada una de ellas aparecen los mismos tipos de errores.

Soy bastante nuevo en TeX en general, solo lo uso para documentos universitarios, por lo que puede haber algún problema estúpidamente obvio, pero no puedo detectar nada en particular.

¡Gracias de antemano!

Respuesta1

El problema es como cuando tienes \captiondentro un entorno no flotante ( tabularx), aunque ltablexdefine tabularxser longtableel que define \caption.

Úselo \captionof{table}{...}afuera tabularxpara obtener lo que desea.

MWE (No ajusté las columnas, se lo dejo como ejercicio)

\documentclass[12pt,a4paper,twoside,table]{report}

\usepackage{textcomp}
\usepackage{lmodern}
\usepackage{helvet}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
\usepackage[utf8]{inputenc}
     \usepackage[]{xcolor}
     \definecolor{steelblue}{RGB}{70,130,180}
    \usepackage{tabularx}
\usepackage[labelfont=bf,textfont=normal,justification=justified,singlelinecheck=false]{caption}
    \usepackage{ltablex}

\begin{document}

\footnotesize
\renewcommand\arraystretch{1.25}
\captionof{table}{\small Sample caption.}\label{tab:qfd}
\begin{tabularx}{\textwidth}{
     >{\setlength\hsize{0.5  \hsize}\centering}X
     >{\setlength\hsize{0.15  \hsize}\centering}X
     >{\setlength\hsize{0.17 \hsize}\centering}X
     >{\setlength\hsize{0.08 \hsize}\centering}X
     >{\setlength\hsize{0.1 \hsize}\centering}X}
\rowcolor{steelblue} \textcolor{white}{Quality Characteristics  (Requirements)} & \textcolor{white}{Minimize, Maximize, or Target}  & \textcolor{white}{Max Relationship}  & \textcolor{white}{Requirement  Weight} & \textcolor{white}{Relative Weight}   \tabularnewline
Possibility of Automation                                             & maximize                                                                & 9                                                                  & 14,64               & 1,14\%                                  \tabularnewline
Curling                                                               & minimize                                                                & 1                                                                  & 1,50                & 0,12\%                                  \tabularnewline
Young's modulus                                                       & minimize                                                                & 3                                                                  & 10,26               & 0,80\%                                  \tabularnewline
Peel-off adhesion                                                     & maximize                                                                & 9                                                                  & 47,62               & 3,72\%                             \tabularnewline
Presence of characteristic feature                                    &target                                                               & 1                                                                  & 1,50                & 0,12\%                                  \tabularnewline
Substrate preparation time                                            & minimize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Number of steps                                                       & minimize                                                                & 3                                                                  & 5,13                & 0,40\%                                  \tabularnewline
time of application                                                   & minimize                                                                & 9                                                                  & 19,89               & 1,55\%                                  \tabularnewline
Film preparation time                                                 & minimize                                                                & 3                                                                  & 5,13                & 0,40\%                                  \tabularnewline
Equipment Cost                                                        & minimize                                                                & 3                                                                  & 4,50                & 0,35\%                                  \tabularnewline
Consumables cost per hour                                             & minimize                                                                & 9                                                                  & 13,51               & 1,05\%                                  \tabularnewline
Material cost per area                                                & minimize                                                                & 9                                                                  & 13,89               & 1,08\%                                  \tabularnewline
Wetting                                                               & minimize                                                                & 9                                                                  & 28,44               & 2,22\%                                  \tabularnewline
Maximum Heat Absorption                                               & minimize                                                                & 9                                                                  & 14,14               & 1,10\%                                  \tabularnewline
Stain resistance                                                      & maximize                                                                & 9                                                                  & 34,28               & 2,67\%                                  \tabularnewline
Surface texture                                                       &target                                                               & 9                                                                  & 85,20               & 6,65\%                                  \tabularnewline
Area of residue left                                                  & minimize                                                                & 9                                                                  & 16,51               & 1,29\%                                  \tabularnewline
Self-healing properties                                               &target                                                               & 9                                                                  & 22,27               & 1,74\%                                  \tabularnewline
Ability of repair with DIY paint repair kits (decorative only)        &target                                                               & 3                                                                  & 5,00                & 0,39\%                                  \tabularnewline
Polishing quality                                                     & maximize                                                                & 3                                                                  & 5,00                & 0,39\%                                  \tabularnewline
Scratch resistance                                                    & maximize                                                                & 9                                                                  & 34,15               & 2,66\%                                  \tabularnewline
Edge Roughness                                                        & minimize                                                                & 9                                                                  & 38,78               & 3,03\%                                  \tabularnewline
Presence of adhesive                                                  &target                                                               & 9                                                                  & 16,51               & 1,29\%                                  \tabularnewline
Cling adhesion                                                        &target                                                               & 3                                                                  & 7,51                & 0,59\%                                  \tabularnewline
Opacity                                                               & maximize                                                                & 9                                                                  & 15,80               & 1,23\%                                  \tabularnewline
Colour deviation                                                      & minimize                                                                & 9                                                                  & 76,19               & 5,94\%                                  \tabularnewline
Thickness                                                             & minimize                                                                & 9                                                                  & 29,98               & 2,34\%                                  \tabularnewline
Edge visibility                                                       & minimize                                                                & 9                                                                  & 22,77               & 1,78\%                                  \tabularnewline
Gloss                                                                 &target                                                               & 9                                                                  & 55,80               & 4,35\%                                  \tabularnewline
Transmittance of protective film                                      & maximize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Presence of bubbles                                                   &target                                                               & 9                                                                  & 18,02               & 1,41\%                                  \tabularnewline
Features supporting bubble-free application                           &target                                                               & 3                                                                  & 6,01                & 0,47\%                                  \tabularnewline
Orange peel look                                                      &target                                                             & 9                                                                  & 18,02               & 1,41\%                                  \tabularnewline
Variation in surface roughness                                        & minimize                                                                & 9                                                                  & 11,63               & 0,91\%                                  \tabularnewline
Rubbing wear resistance                                               & maximize                                                                & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Reactivity with chemical substances                                   &target                                                              & 9                                                                  & 39,41               & 3,07\%                                  \tabularnewline
Abrasion Resistance                                                   & maximize                                                                & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Nano-scratch resistance                                               & maximize                                                                & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Elongation                                                            &target                                                               & 9                                                                  & 23,52               & 1,83\%                                  \tabularnewline
Stone chipping resistance                                             & maximize                                                                & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Impact toughness                                                      & maximize                                                                & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Shear adhesion                                                        & maximize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Edge adhesion                                                         & maximize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Pressure adhesion                                                     & maximize                                                                & 3                                                                  & 5,13                & 0,40\%                                  \tabularnewline
Surface Energy                                                        & maximize                                                                & 9                                                                  & 18,39               & 1,43\%                                  \tabularnewline
Possibility to apply custom colour                                    &target                                                              & 9                                                                  & 14,64               & 1,14\%                                 \tabularnewline
Printability                                                          &target                                                               & 3                                                                  & 4,88                & 0,38\%                                  \tabularnewline
Possible to store in production area                                  &target                                                               & 9                                                                  & 12,39               & 0,97\%                                  \tabularnewline
Colour changing properties                                            &target                                                               & 9                                                                  & 9,76                & 0,76\%                                  \tabularnewline
Thermal conductivity                                                  &target                                                               & 9                                                                  & 14,39               & 1,12\%                                  \tabularnewline
Thermal expansion coefficient                                         &target                                                               & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Minimum operating temperature                                         &target                                                               & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Maximum operating temperature                                         &target                                                               & 9                                                                  & 20,52               & 1,60\%                                  \tabularnewline
Hardness                                                              & maximize                                                                & 3                                                                  & 5,13                & 0,40\%                                  \tabularnewline
Change in toughness per time                                          & minimize                                                                & 3                                                                  & 5,13                & 0,40\%                                  \tabularnewline
Gloss loss over time                                                  & minimize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Corrosion resistance                                                  & maximize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Water absorption                                                      & maximize                                                                & 9                                                                  & 29,23               & 2,28\%                                  \tabularnewline
Air tightness                                                         & maximize                                                                & 3                                                                  & 5,75                & 0,45\%                                  \tabularnewline
Solubility in water                                                   &target                                                               & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Shrinkage                                                             & minimize                                                               & 9                                                                  & 17,26               & 1,35\%                                  \tabularnewline
Yellowing                                                             & minimize                                                                & 9                                                                  & 18,02               & 1,41\%                                  \tabularnewline
Presence of toxic substances                                          &target                                                               & 9                                                                  & 18,77               & 1,46\%                                  \tabularnewline
Toxicity after disposal                                               &target                                                               & 9                                                                  & 18,77               & 1,46\%                                  \tabularnewline
Flammability                                                          &target                                                               & 9                                                                  & 18,77               & 1,46\%                                  \tabularnewline
Percentage content of recyclable materials                            & maximize                                                                & 9                                                                  & 16,51               & 1,29\%                                  \tabularnewline
Presence of standard Toxic substances                                 &target                                                               & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Friction drag coefficient                                             & minimize                                                                & 9                                                                  & 9,38                & 0,73\%                                  \tabularnewline
Mass per area                                                         & minimize                                                                & 9                                                                  & 13,14               & 1,02\%                                  \tabularnewline
Usage of special or specific tools                                    &target                                                               & 3                                                                  & 3,50                & 0,27\%                                \tabularnewline \hline
\end{tabularx}

\end{document} 

ingrese la descripción de la imagen aquí

Respuesta2

Creo que el principal error es la forma en que se establecen las longitudes relativas de las Xcolumnas. La suma de los coeficientes no debe ser igual a 1, sino al número de columnas, 5, en tu versión.

Mejoré su tabla usando el Stipo de columna de siunitx, para tener una alineación en el punto decimal, y usé el \theadcomando de makecellpara tener un formato común de los encabezados de columna y los saltos de línea dentro de estos encabezados.

\documentclass[12pt,a4paper,twoside,table, svgnames, x11names]{report}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}
\usepackage{lmodern}
\usepackage{helvet}
\usepackage[english]{babel}
\usepackage{siunitx, makecell, booktabs}
\renewcommand\theadfont{\color{white}}%
 \usepackage{xcolor}
 \definecolor{steelblue}{RGB}{70,130,180}
\usepackage[labelfont=bf,textfont=normal,justification=justified,singlelinecheck=false]{caption}
\usepackage{ltablex}
\renewcommand{\tabularxcolumn}[1]{ >{\centering\arraybackslash}m{#1}}

\begin{document}

\footnotesize
\renewcommand\arraystretch{1.25}\setlength\tabcolsep{3pt}
\begin{tabularx}{\textwidth}{
  >{\hsize=1.55\hsize}X
  >{\hsize=0.45\hsize}X
  cS[table-format=2.2, table-column-width =2cm]S[table-format=1.2]}
  \caption{\small Sample caption.}
  \label{tab:qfd} \\
  \rowcolor{steelblue} \thead{Quality Characteristics \\(Requirements)} & \thead{Minimize, \\Maximize,\\ or Target} & {\thead{Max \\Relationship}} &{\thead{Requirement\\ Weight}} &{\thead{Relative\\ Weight (\%)}}\\\addlinespace
  \endfirsthead
  %%%%%%%%%%%%%%%%%
  \rowcolor{steelblue} \thead{Quality Characteristics \\(Requirements)} & \thead{Minimize, \\Maximize,\\ or Target} & {\thead{Max \\Relationship}} &{\thead{Requirement\\ Weight}} &{\thead{Relative\\ Weight (\%)}} \\\addlinespace
  \endhead
 %%%%%%%%%%%%%%%%%
  \bottomrule
  \multicolumn{5}{r}{\scriptsize to be continued}
  \endfoot
  %%%%%%%%%%%%%%%%%
  \bottomrule
  \endlastfoot
  %%%%%%%%%%%%%%%%%
  Possibility of Automation & maximize & 9 & 14,64 & 1,14 \\
  Curling & minimize & 1 & 1,50 & 0,12 \\
  Young's modulus & minimize & 3 & 10,26 & 0,80 \\
  Peel-off adhesion & maximize & 9 & 47,62 & 3,72 \\
  Presence of characteristic feature & target & 1 & 1,50 & 0,12 \\
  Substrate preparation time & minimize & 9 & 15,39 & 1,20 \\
  Number of steps & minimize & 3 & 5,13 & 0,40 \\
  time of application & minimize & 9 & 19,89 & 1,55 \\
  Film preparation time & minimize & 3 & 5,13 & 0,40 \\
  Equipment Cost & minimize & 3 & 4,50 & 0,35 \\
  Consumables cost per hour & minimize & 9 & 13,51 & 1,05 \\
  Material cost per area & minimize & 9 & 13,89 & 1,08 \\
  Wetting & minimize & 9 & 28,44 & 2,22 \\
  Maximum Heat Absorption & minimize & 9 & 14,14 & 1,10 \\
  Stain resistance & maximize & 9 & 34,28 & 2,67 \\
  Surface texture & target & 9 & 85,20 & 6,65 \\
  Area of residue left & minimize & 9 & 16,51 & 1,29 \\
  Self-healing properties & target & 9 & 22,27 & 1,74 \\
  Ability of repair with\break DIY paint repair kits\break (decorative only) & target & 3 & 5,00 & 0,39 \\
  Polishing quality & maximize & 3 & 5,00 & 0,39 \\
  Scratch resistance & maximize & 9 & 34,15 & 2,66 \\
  Edge Roughness & minimize & 9 & 38,78 & 3,03 \\
  Presence of adhesive & target & 9 & 16,51 & 1,29 \\
  Cling adhesion & target & 3 & 7,51 & 0,59 \\
  Opacity & maximize & 9 & 15,80 & 1,23 \\
  Colour deviation & minimize & 9 & 76,19 & 5,94 \\
  Thickness & minimize & 9 & 29,98 & 2,34 \\
  Edge visibility & minimize & 9 & 22,77 & 1,78 \\
  Gloss & target & 9 & 55,80 & 4,35 \\
  Transmittance of\break protective film & maximize & 9 & 15,39 & 1,20 \\
  Presence of bubbles & target & 9 & 18,02 & 1,41 \\
  Features supporting\break bubble-free application & target & 3 & 6,01 & 0,47 \\
  Orange peel look & target & 9 & 18,02 & 1,41 \\
  Variation in surface roughness & minimize & 9 & 11,63 & 0,91 \\
  Rubbing wear resistance & maximize & 9 & 16,89 & 1,32 \\
  Reactivity with \break chemical substances & target & 9 & 39,41 & 3,07 \\
  Abrasion Resistance & maximize & 9 & 16,89 & 1,32 \\
  Nano-scratch resistance & maximize & 9 & 16,89 & 1,32 \\
  Elongation & target & 9 & 23,52 & 1,83 \\
  Stone chipping resistance & maximize & 9 & 16,89 & 1,32 \\
  Impact toughness & maximize & 9 & 16,89 & 1,32 \\
  Shear adhesion & maximize & 9 & 15,39 & 1,20 \\
  Edge adhesion & maximize & 9 & 15,39 & 1,20 \\
  Pressure adhesion & maximize & 3 & 5,13 & 0,40 \\
  Surface Energy & maximize & 9 & 18,39 & 1,43 \\
  Possibility to apply custom colour & target & 9 & 14,64 & 1,14 \\
  Printability & target & 3 & 4,88 & 0,38 \\
  Possible to store\break in production area & target & 9 & 12,39 & 0,97 \\
  Colour changing properties & target & 9 & 9,76 & 0,76 \\
  Thermal conductivity & target & 9 & 14,39 & 1,12 \\
  Thermal expansion coefficient & target & 9 & 15,39 & 1,20 \\
  Minimum operating temperature & target & 9 & 15,39 & 1,20 \\
  Maximum operating temperature & target & 9 & 20,52 & 1,60 \\
  Hardness & maximize & 3 & 5,13 & 0,40 \\
  Change in toughness per time & minimize & 3 & 5,13 & 0,40 \\
  Gloss loss over time & minimize & 9 & 15,39 & 1,20 \\
  Corrosion resistance & maximize & 9 & 15,39 & 1,20 \\
  Water absorption & maximize & 9 & 29,23 & 2,28 \\
  Air tightness & maximize & 3 & 5,75 & 0,45 \\
  Solubility in water & target & 9 & 15,39 & 1,20 \\
  Shrinkage & minimize & 9 & 17,26 & 1,35 \\
  Yellowing & minimize & 9 & 18,02 & 1,41 \\
  Presence of toxic substances & target & 9 & 18,77 & 1,46 \\
  Toxicity after disposal & target & 9 & 18,77 & 1,46 \\
  Flammability & target & 9 & 18,77 & 1,46 \\
  Percentage content of \break recyclable materials & maximize & 9 & 16,51 & 1,29 \\
  Presence of standard \break Toxic substances & target & 9 & 16,89 & 1,32 \\
  Friction drag coefficient & minimize & 9 & 9,38 & 0,73 \\
  Mass per area & minimize & 9 & 13,14 & 1,02 \\
  Usage of special \break or specific tools & target & 3 & 3,50 & 0,27
\end{tabularx}

\end{document} 

ingrese la descripción de la imagen aquí

Respuesta3

Creo que pude haber encontrado el motivo del error, pero no estoy al 100%.

Considere el MWE (versión abreviada del código problemático de OP):

\documentclass{report}
\usepackage{tabularx}    
\usepackage[labelfont=bf,textfont=normal,justification=justified,singlelinecheck=false]{caption}    
\usepackage{ltablex}

\begin{document}
    \begin{tabularx}{\textwidth}{
            >{\setlength\hsize{0.5  \hsize}\centering}X
            >{\setlength\hsize{0.15  \hsize}\centering}X
            >{\setlength\hsize{0.17 \hsize}\centering}X
            >{\setlength\hsize{0.08 \hsize}\centering}X
            >{\setlength\hsize{0.1 \hsize}\centering}X}  
%           \caption{\small Sample caption.\label{tab:qfd}} \tabularnewline
        A & B  & C  & D & E   \tabularnewline
        \hline
        1 & 2 & 3 & 4 & 5     \tabularnewline
    \end{tabularx}
\end{document}

1) Se compila bien cuando se \captioncomenta, pero da un error sobre ...missing \itemcuándo \captionse deja, similar a lo que informa OP.

2) Al dejar \captionel comentario y cambiar uno de los \tabularnewlineelementos a \\, también obtenemos un error.

lo que me lleva a pensar que podría tener algo que ver con \\vs. \tabularnewlineAhora, la solución típica para esto es incluir \arraybackslashdesde el arraypaquete que básicamente tiene la definición:

\def\arraybackslash{\let\\\tabularnewline}

Si incluimos \arraybackslash(y una ligera modificación para \newcolumntypehacer las cosas más compactas):

\documentclass{report}
\usepackage{tabularx}    
\usepackage[labelfont=bf,textfont=normal,justification=justified,singlelinecheck=false]{caption}    
\usepackage{ltablex}

\newcolumntype{Y}[1]{>{\setlength\hsize{#1\hsize}\centering\arraybackslash}X}
\begin{document}
    \begin{tabularx}{\textwidth}{Y{0.5}Y{0.15}Y{0.17}Y{0.08}Y{0.1}}  
            \caption{\small Sample caption.\label{tab:qfd}} \tabularnewline
        A & B  & C  & D & E   \tabularnewline
        \hline
        1 & 2 & 3 & 4 & 5     \tabularnewline
    \end{tabularx}
\end{document}

Ahora funciona con el título incluido dentro del tabularxentorno, sin errores.

mesa de prueba

Ahora, no estoy seguropor quéEsto es así, así que si aparece una respuesta más completa, eliminaré mi respuesta. Por ahora, proporcionaré la solución rápida a @Slovakov:


Solución específica:

\documentclass{report}
\usepackage[table]{xcolor}                  
\definecolor{steelblue}{RGB}{70,130,180}
\usepackage{tabularx}    
\usepackage[labelfont=bf,textfont=normal,justification=justified,singlelinecheck=false]{caption}    
\usepackage{ltablex}

\newcolumntype{Y}[1]{>{\setlength\hsize{#1\hsize}\centering\arraybackslash}X}
\begin{document}
    \begin{tabularx}{\textwidth}{Y{0.5}Y{0.15}Y{0.17}Y{0.08}Y{0.1}}  
            \caption{\small Sample caption.\label{tab:qfd}} \tabularnewline
\rowcolor{steelblue} \textcolor{white}{Quality Characteristics  ( Requirements)} & \textcolor{white}{Minimize, Maximize, or Target}  & \textcolor{white}{Max Relationship}  & \textcolor{white}{Requirement  Weight} & \textcolor{white}{Relative Weight}   \tabularnewline
Possibility of Automation                                             & maximize                                                                & 9                                                                  & 14,64               & 1,14\%                                  \tabularnewline
Curling                                                               & minimize                                                                & 1                                                                  & 1,50                & 0,12\%                                  \tabularnewline
Young's modulus                                                       & minimize                                                                & 3                                                                  & 10,26               & 0,80\%                                  \tabularnewline
Peel-off adhesion                                                     & maximize                                                                & 9                                                                  & 47,62               & 3,72\%                             \tabularnewline
Presence of characteristic feature                                    &target                                                               & 1                                                                  & 1,50                & 0,12\%                                  \tabularnewline
Substrate preparation time                                            & minimize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Number of steps                                                       & minimize                                                                & 3                                                                  & 5,13                & 0,40\%                                  \tabularnewline
time of application                                                   & minimize                                                                & 9                                                                  & 19,89               & 1,55\%                                  \tabularnewline
Film preparation time                                                 & minimize                                                                & 3                                                                  & 5,13                & 0,40\%                                  \tabularnewline
Equipment Cost                                                        & minimize                                                                & 3                                                                  & 4,50                & 0,35\%                                  \tabularnewline
Consumables cost per hour                                             & minimize                                                                & 9                                                                  & 13,51               & 1,05\%                                  \tabularnewline
Material cost per area                                                & minimize                                                                & 9                                                                  & 13,89               & 1,08\%                                  \tabularnewline
Wetting                                                               & minimize                                                                & 9                                                                  & 28,44               & 2,22\%                                  \tabularnewline
Maximum Heat Absorption                                               & minimize                                                                & 9                                                                  & 14,14               & 1,10\%                                  \tabularnewline
Stain resistance                                                      & maximize                                                                & 9                                                                  & 34,28               & 2,67\%                                  \tabularnewline
Surface texture                                                       &target                                                               & 9                                                                  & 85,20               & 6,65\%                                  \tabularnewline
Area of residue left                                                  & minimize                                                                & 9                                                                  & 16,51               & 1,29\%                                  \tabularnewline
Self-healing properties                                               &target                                                               & 9                                                                  & 22,27               & 1,74\%                                  \tabularnewline
Ability of repair with DIY paint repair kits (decorative only)        &target                                                               & 3                                                                  & 5,00                & 0,39\%                                  \tabularnewline
Polishing quality                                                     & maximize                                                                & 3                                                                  & 5,00                & 0,39\%                                  \tabularnewline
Scratch resistance                                                    & maximize                                                                & 9                                                                  & 34,15               & 2,66\%                                  \tabularnewline
Edge Roughness                                                        & minimize                                                                & 9                                                                  & 38,78               & 3,03\%                                  \tabularnewline
Presence of adhesive                                                  &target                                                               & 9                                                                  & 16,51               & 1,29\%                                  \tabularnewline
Cling adhesion                                                        &target                                                               & 3                                                                  & 7,51                & 0,59\%                                  \tabularnewline
Opacity                                                               & maximize                                                                & 9                                                                  & 15,80               & 1,23\%                                  \tabularnewline
Colour deviation                                                      & minimize                                                                & 9                                                                  & 76,19               & 5,94\%                                  \tabularnewline
Thickness                                                             & minimize                                                                & 9                                                                  & 29,98               & 2,34\%                                  \tabularnewline
Edge visibility                                                       & minimize                                                                & 9                                                                  & 22,77               & 1,78\%                                  \tabularnewline
Gloss                                                                 &target                                                               & 9                                                                  & 55,80               & 4,35\%                                  \tabularnewline
Transmittance of protective film                                      & maximize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Presence of bubbles                                                   &target                                                               & 9                                                                  & 18,02               & 1,41\%                                  \tabularnewline
Features supporting bubble-free application                           &target                                                               & 3                                                                  & 6,01                & 0,47\%                                  \tabularnewline
Orange peel look                                                      &target                                                             & 9                                                                  & 18,02               & 1,41\%                                  \tabularnewline
Variation in surface roughness                                        & minimize                                                                & 9                                                                  & 11,63               & 0,91\%                                  \tabularnewline
Rubbing wear resistance                                               & maximize                                                                & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Reactivity with chemical substances                                   &target                                                              & 9                                                                  & 39,41               & 3,07\%                                  \tabularnewline
Abrasion Resistance                                                   & maximize                                                                & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Nano-scratch resistance                                               & maximize                                                                & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Elongation                                                            &target                                                               & 9                                                                  & 23,52               & 1,83\%                                  \tabularnewline
Stone chipping resistance                                             & maximize                                                                & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Impact toughness                                                      & maximize                                                                & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Shear adhesion                                                        & maximize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Edge adhesion                                                         & maximize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Pressure adhesion                                                     & maximize                                                                & 3                                                                  & 5,13                & 0,40\%                                  \tabularnewline
Surface Energy                                                        & maximize                                                                & 9                                                                  & 18,39               & 1,43\%                                  \tabularnewline
Possibility to apply custom colour                                    &target                                                              & 9                                                                  & 14,64               & 1,14\%                                 \tabularnewline
Printability                                                          &target                                                               & 3                                                                  & 4,88                & 0,38\%                                  \tabularnewline
Possible to store in production area                                  &target                                                               & 9                                                                  & 12,39               & 0,97\%                                  \tabularnewline
Colour changing properties                                            &target                                                               & 9                                                                  & 9,76                & 0,76\%                                  \tabularnewline
Thermal conductivity                                                  &target                                                               & 9                                                                  & 14,39               & 1,12\%                                  \tabularnewline
Thermal expansion coefficient                                         &target                                                               & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Minimum operating temperature                                         &target                                                               & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Maximum operating temperature                                         &target                                                               & 9                                                                  & 20,52               & 1,60\%                                  \tabularnewline
Hardness                                                              & maximize                                                                & 3                                                                  & 5,13                & 0,40\%                                  \tabularnewline
Change in toughness per time                                          & minimize                                                                & 3                                                                  & 5,13                & 0,40\%                                  \tabularnewline
Gloss loss over time                                                  & minimize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Corrosion resistance                                                  & maximize                                                                & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Water absorption                                                      & maximize                                                                & 9                                                                  & 29,23               & 2,28\%                                  \tabularnewline
Air tightness                                                         & maximize                                                                & 3                                                                  & 5,75                & 0,45\%                                  \tabularnewline
Solubility in water                                                   &target                                                               & 9                                                                  & 15,39               & 1,20\%                                  \tabularnewline
Shrinkage                                                             & minimize                                                               & 9                                                                  & 17,26               & 1,35\%                                  \tabularnewline
Yellowing                                                             & minimize                                                                & 9                                                                  & 18,02               & 1,41\%                                  \tabularnewline
Presence of toxic substances                                          &target                                                               & 9                                                                  & 18,77               & 1,46\%                                  \tabularnewline
Toxicity after disposal                                               &target                                                               & 9                                                                  & 18,77               & 1,46\%                                  \tabularnewline
Flammability                                                          &target                                                               & 9                                                                  & 18,77               & 1,46\%                                  \tabularnewline
Percentage content of recyclable materials                            & maximize                                                                & 9                                                                  & 16,51               & 1,29\%                                  \tabularnewline
Presence of standard Toxic substances                                 &target                                                               & 9                                                                  & 16,89               & 1,32\%                                  \tabularnewline
Friction drag coefficient                                             & minimize                                                                & 9                                                                  & 9,38                & 0,73\%                                  \tabularnewline
Mass per area                                                         & minimize                                                                & 9                                                                  & 13,14               & 1,02\%                                  \tabularnewline
Usage of special or specific tools                                    &target                                                               & 3                                                                  & 3,50                & 0,27\%                                \tabularnewline \hline
\end{tabularx}
\end{document}

final

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