\documentclass{book}
\usepackage{amsmath}
\usepackage[german]{babel}
\usepackage{amssymb}
\usepackage{amsxtra}
\usepackage[dvips]{epsfig,psfrag}
\usepackage{listings}
\newcommand{\refchapter}[1]{Kapitel~\ref{#1}}
\newcommand{\refsec}[1]{Sektion~\ref{#1}}
\newcommand{\refeqn}[1]{Gleichung~(\ref{#1})}
\newcommand{\reffig}[1]{Abbildung~\ref{#1}}
\title{\bf Grundz\"uge der Softwareentwicklung \\
{\small Analyse- und Entwurfsdokument} \vspace{1cm}\\
\centering
\epsfig{file=figures/logo.eps,width=.4\textwidth}
}
\author{Uschi Musterfrau, Detlef Mustermann und Ralf Auchmustermann}
\date{Matr.-Nr. 0815, 0816 und 0817 \\
email: {\tt [uschi|detlef|ralf]@rwth-aachen.de}
}
\begin{document}
\lstloadlanguages{[ISO]C++}
\lstset{basicstyle=\small, numbers=left, numberstyle=\footnotesize,
stepnumber=1, numbersep=5pt, breaklines=true, escapeinside={/*@}{@*/}}
\pagestyle{headings}
\maketitle
\tableofcontents
\include{vorwort}
\include{analyse}
\include{entwurf}
\include{nutzerdoc}
\include{entwicklerdoc}
\bibliographystyle{plain}
\bibliography{analyse_entwurf}
\appendix
\include{quellcode}
\end{document}
this is how my file starts. I didn’t even edit it, I received it like this. However, if I want to make a pdf, it gives me the undefined control sequence error at the first line… What is wrong??
My guess is that you’re trying to use TeX instead of LaTeX. TeX won’t recognize the \documentclass command. Make sure you use LaTeX.