General ⇒ "Missing \begin{document}"error but \begin{document} present

[oceane]

Hello everyone!
I'm trying to use pdflatex with Sweave. This convert a rnw file in tex file. After that you just have to use "pdflatex" and you have your pdf file.
Every time I'm compiling I've got the same error message "Missing \begin{document}" but I've write this in my file !
Here's the begining of it :

Code: Select all

\documentclass[a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{color, pdfcolmk}

\usepackage{C:/PROGRA~1/R/R-27~1.1/share/texmf/Sweave}
\begin{document}
\DefineVerbatimEnvironment{Sinput}{Verbatim}{formatcom = {\color[rgb]{0, 0, 0.56}}}
\DefineVerbatimEnvironment{Soutput}{Verbatim}{formatcom = {\color[rgb]{0.56, 0, 0}}}

\setkeys{Gin}{width=0.8\textwidth}

\title{Dynamique de population de l'espèce Dauphin commun}
\author{CRMM}

\maketitle

\section{Fonction de mortalite }

\underline{ Présentation des données : }
Les échouages se répartissent de la façon suivante : 

Thanks a lot for your help

[phi]

Where exactly (file, line) does the error occur? If applicable, post some excerpt of your log file. "Missing \begin{document}" means that something in your preamble tries to typeset text. The \usepackage command is a bit strange here, but seems to be correct according to the manual.

[daleif]

could the tildes be the problem? in the call for sweave?

[phi]

this is indeed possible, the tilde is active and gets expanded by \@@input. But there are unexpandable tokens in the expansion (e.g. \relax, because \nobreakspace is robust), so TeX thinks the filename is finished and tries to typeset the rest. Try this:

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\usepackage{\detokenize{C:/PROGRA~1/R/R-27~1.1/share/texmf/Sweave}}

or/and use the real (quoted) path instead of the 8.3 path

[T3.]

In case the problem comes from the tilde character, try the following hack (MiKTeX assumed):

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%& -include-directory=C:/PROGRA~1/R/R-27~1.1/share/texmf
\documentclass[a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{color, pdfcolmk}

\usepackage{Sweave}
\begin{document}

Cheers,

Tomek