General ⇒ Errors when including chapters

[bluebarca]

i've written book chapters, each in a separete .tex file. Each works on its own and gives output. I've created a .tex file to include all the chapters made but this always gives errors!

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\documentclass[12pt, a4paper, oneside]{book}
\usepackage{fullpage}
\usepackage{graphicx}
\usepackage{alltt}
\usepackage{latexsym}

\begin{document}
\pagenumbering{arabic}
\include{chapter1}
\include{chapter2}
\include{chapter3}
\include{chapter4}
\include{chapter5}
\bibliographystyle{plain}
\bibliography{references}
\end{document}

Errors:

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!LaTeX Error: Can only be used in preamble.
1.1 \documentclass[12pt,a4paper,oneside]{book}

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!LaTeX Error: Can only be used in preamble.
1.3 \usepackage{url}

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!LaTeX Error: Can only be used in preamble.
1.5 \usepackage{hyperref}

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!LaTeX Error: Can only be used in preamble.
1.11 \begin{document}

How can i solve this problem ?

[localghost]

Obviously your included files are complete LaTeX documents singularly. Files for inclusion must not contain a preamble.


Best regards and welcome to the board
Thorsten

[bluebarca]

Thank you for the help Thorsten