I am writing my Thesis document and I have Problem with table of Contents. It appears twice all the time. I tried many ways but could not get any help.

\documentclass[a4paper, 12pt, oneside, BCOR1cm,toc=chapterentrywithdots]{article}
\usepackage{graphicx}
\begin{document}
\begin{titlepage}

{
\begin{center}
\raisebox{-1ex}{\includegraphics[scale=0.8]{University1.PNG}}
\raisebox{-1ex}{\includegraphics[scale=0.7]{DOC.PNG}}
\end{center}
\vspace{0.5cm}
}

\begin{center}

\LARGE{\textbf{eksfhsufse sdsdgz hfszudfg sjhdgsdgs}}\\
\vspace{1cm}

\Large{\textbf{Master Thesis}}\\
\vspace{0.5cm}
Submitted in Fulfilment of the\\
M.Sc.\\
\vspace{0.5cm}
Dept. of Computer Science\\
Chair of Computer Engineering
\end{center}
\vspace{3cm}
Student ID: bxdjhasdga\\
Date: 12.12.2016\\
\vspace{0.0cm}\\
Supervising tutor: jdjasda \\
(further supervisors)
\end{titlepage}

%---------------------------------------------------------
% Declaration
%---------------------------------------------------------

{Declaration}
%\blindtext
\\
%\textbf{Keywords: Keyword1, Keyword2, Keyword3, ...max 5}
\vspace{0.0mm}
%setlength{\parskip}{1em}
\renewcommand{\baselinestretch}{0.0}
\begin{sloppypar}
my content
\end{sloppypar}
\newpage

%---------------------------------------------------------
%---------------------------------------------------------
\tableofcontents
\section{Introduction}
\section{Motivation}
\section{Theoritical Background}
\subsection{Development of Emissions legislation}
\subsection{Beginning of regulation for Exhaust Emissions}
\subsection{Current Emission regulations}
\subsection{Worldwide Harmonized Light vehicles Test cycle}
\subsection{Portable Emission Measurement system}
\subsection{Real-Drive Emissions}
\section{Software}
\subsection{INCA}
\subsection{Mil-Desk}
\subsection{Microsoft Visual Studio 2013}
\subsubsection{Programing language C}
\section{Conclusion}
\section{References}
\listoffigures
\listoftables
\end{document}


This is my code. Any help would be appreciable. Thanks in advance.

• Welcome, the code posted created only one table of contents. – Johannes_B Oct 9 '16 at 11:08
• \Large, like all size comamnds does not take an argument, the syntax is \LARGE abc not LARGE{abc} – David Carlisle Oct 9 '16 at 11:15
• The first page is the table of contents, the second page is the contents (and the reason for the first page). – gernot Oct 9 '16 at 11:28
• I suggest to take a 30 minute break, drink a coffee and come back. You are thinking in the completetly wrong direction. I am serious, take a break. – Johannes_B Oct 9 '16 at 11:35
• After the break, consider replacing the wombat sentence with the real content of your thesis. – Johannes_B Oct 9 '16 at 11:36

The table of contents (ToC) is showed only one time, just where it is your \tableofcontents code.

The \section{Introduction} is not the first line of the ToC, is the title of the first section in the main text. But without normal text among sections titles, the list of titles resemble a table of contents without number of pages. Just write some text among the \section and \subsection lines, e.g.:

\subsection{INCA}
The Inca Empire was the largest empire in pre-Columbian America.


And you will see the difference.

For a better understanding of the basics, is always better start with a minimal working example as:

\documentclass{article}
\begin{document}
\tableofcontents
\section{Introduction}
This is a little example.
\section{Motivation}
Light the way for who is in the dark.
\end{document}


Not enough clear? May be help a different ToC and colors. (Also help a lot comment each obscure code):

\documentclass{paper}         % Just for see a dotted ToC
\usepackage{color}            % Just for see another color in the ToC
\pagestyle{empty}             % Just for no head/foot distraction
\begin{document}              % This start the document
{\color{red}\tableofcontents} % This make a (one) ToC in red
\color{blue}                  % This turn blue the following content in blue
\section{Introduction}        % This is already the contents !!
This is a little example. % This is plain text
\section{Motivation}          % This is another section title
Light the way for who
is in the dark.
\end{document}                % This is the end