Recibo Undefined control sequenceun error cuando uso \hyperrefpara referirme a la sección deseada. Quiero que el número de sección se refiera a la sección cuando hago clic en ella al mismo tiempo. Quiero que el número de la sección aparezca automáticamente mediante \ref. Como esto:
\documentclass{article}
\usepackage{harvard}
\usepackage{xcolor}
\usepackage{graphicx}
\usepackage{url}
\usepackage{hyperref}
\usepackage{xspace}
\renewcommand{\harvardurl}{URL:\url}
\graphicspath{./301/Alaa Ali Yousef/}
\title {Example \LaTeX \quad article for course 4ME301}
\author{Alaa Ali Yousef \\ 9105195789 \\[email protected]\\ Linnaeus University, Växjö }
\begin{document}
\maketitle
\begin{abstract}
This assignment aims to make you familiar with the basic features
of \LaTeX which should come useful when preparing your own reports,
and eventually your master thesis. You should try to replicate “as
close as possible” this PDF document using \LaTeX. This does not
exclude making some changes as long as they are relevant. Submission
instructions can be found in Section \ref{secondSection}.
\end{abstract}
\section{Introduction section}
\label{firstsection}
There is a handy book about \LaTeX {\color{green}\cite{lamport1994latex}} available at the LNU library, but if
you search online you should find many examples and guides, like e.g. {\color{green}\cite{WEBSITE:2}}
on {\color{green}\cite{WEBSITE:3}}, or extensive information on {\color{green}\cite{WEBSITE:1}}.
\section{How to submit}
\label{secondSection}
\
When you compose and compile the final version of this document, you should upload a .zip file on the course moodle that contains:
\begin{enumerate}
\item the compiled .pdf file;
\item the source files (.tex, .bib, and the image file).
\end{enumerate}
The filename template for these files, besides the image file, should be:
\begin{itemize}
\item 4ME301-LaTeX-[yoursurname].xxx
\end{itemize}
\end{document}
¿Cómo puedo usar \ref y \hyperref o \hyperlink para hacer que se pueda hacer clic en el número de la sección y cuáles son más adecuados para usar \hyperref o \hyperlink?
Usé ambos y me sale el mismo error.