Problem mit undefiniertem Zitat (Referenzliste verschwindet)

Problem mit undefiniertem Zitat (Referenzliste verschwindet)

Bildbeschreibung hier eingeben

Ich habe diese Vorlage geöffnet und die andere Referenz-Bibtex-Datei hinzugefügt. Overleaf zur Texmaker Bibtex-Vorlage

Nach dem Löschen der hinzugefügten Datei ist die Referenzliste verschwunden.

Der Text der Hauptdatei und der Bibliografiedatei stimmt exakt mit dem der Originalvorlage überein.

Wer eine Lösung kennt, hinterlässt bitte einen Kommentar.


main.tex

% BEGIN -- SETUP DOCUMENT (OVERLEAF) --
\documentclass[a4paper,12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[british]{babel}
\usepackage{csquotes}
\usepackage[backend=biber,style=apa]{biblatex}
\DeclareLanguageMapping{british}{british-apa}
\usepackage[pdftex]{graphicx}


\addbibresource{ref.bib}

\let\cite\parencite
\begin{document}
% END -- SETUP DOCUMENT (OVERLEAF) --

% BEGIN -- SETUP DOCUMENT (TEXMAKER) --
% \documentclass[a4paper,12pt]{article}
% \usepackage{hyperref}
% \usepackage{apacite}
% \begin{document}
% \bibliographystyle{apacite}
% END -- SETUP DOCUMENT (TEXMAKER) --

\title{ Overleaf to Texmaker Bibtex Template }
\author{Zhen Yong Lee}
\date{May 12, 2016}
\maketitle

\section{Literature Review}

\begin{enumerate}
\item \textbf{Bit Weaving} \cite{meiners_liu_torng_2012}: if match fields of two entries differ by only one bit and their action fields are same, these two entries can be merged. 
\item \textbf{Dependent-set caching}  : Each rule is assigned a ``cost'' corresponding to the number of rules that must be installed together and a ``weight'' corresponding to the number of packets expected to hit that rule. The current problem of maximizing the total weight can be formulated as a linear integer programming problem, where each rule has a variable indicating whether the rule is installed in the cache.

\end{enumerate}

\section{Research Methodology}

To verify our results, we will simulate real data center traffic by using ClassBench . ClassBench will be used to generate synthetic rule policy with a different type of packet classification; this will be implemented using C language. 
\\\\
ClassBench is a good choice for simulating a near real data center environment. It generates synthetic rule policy with the desired rule number and dependency using a database from a real data center. In this simulation, we intend to take the standard policy Access Control List, IP Chain and Firewall from the seed files provided by ClassBench.

% BEGIN -- END DOCUMENT (OVERLEAF) --
\printbibliography
\end{document}
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% BEGIN -- END DOCUMENT (TEXMAKER) --
% \bibliography{ref}{}
% \end{document}
% END -- END DOCUMENT (TEXMAKER) --

ref.bib

@article{taylor_turner_2007, 
    title={ClassBench: A Packet Classification Benchmark}, 
    volume={15}, 
    DOI={10.1109/tnet.2007.893156}, 
    number={3}, 
    journal={IEEE/ACM Transactions on Networking IEEE/ACM Trans. Networking}, 
    author={Taylor, David E. and Turner, Jonathan S.}, 
    year={2007}, 
    pages={499–511}
} 

 @misc{katta_2014,
    title = {Rule-Caching Algorithms for Software-Defined Networks},
    howpublished = {\url{https://www.cs.princeton.edu/~jrex/papers/cacheflow-long14.pdf}},
    author={Naga Katta, Omid Alipourfard, Jennifer Rexford and David Walker},
    year = {2014}
}

 @article{meiners_liu_torng_2012, 
    title={Bit Weaving: A Non-Prefix Approach to Compressing Packet Classifiers in TCAMs}, 
    volume={20}, 
    DOI={10.1109/tnet.2011.2165323}, 
    number={2}, 
    journal={IEEE/ACM Transactions on Networking IEEE/ACM Trans. Networking}, 
    author={Meiners, C. R. and Liu, A. X. and Torng, E.}, 
    year={2012}, 
    pages={488–500}
} 

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