[Tex/LaTex] cleveref & varioref : Missing \endcsname inserted

cleverefcross-referencingvarioref

I read the excellent question Difference between ref, varioref and cleveref. Decision for a thesis and various doc on the net (the varioref package documentation) and tried to use it… but with many errors

An exemple :

\documentclass{article}
\usepackage[a4paper]{geometry}
\geometry{top=25mm,bottom=25mm,inner=25mm,outer=20mm,,marginparwidth=1cm,marginparsep=10pt}

\usepackage[ansinew]{inputenc}
\usepackage[french]{babel}
\usepackage[lmodern]
\usepackage[T1]{fontenc}
\usepackage{microtype}

\usepackage{color,xcolor}


\ifpdf%
        \usepackage[pdftex,pagebackref=true,hyperindex=true,colorlinks=true]{hyperref}
        \hypersetup{pdfstartview={FitH}, bookmarksnumbered={true}}
\else%
        \usepackage[hypertex=true,hyperindex=true,colorlinks=false]{hyperref}
\fi

\usepackage{cleveref}
\usepackage{varioref} 

\usepackage{lipsum}


\begin{document}
\section{Bla bla}\label{sec:bla}
\lipsum[1]

\newpage
\section{Second bla bla}
Test section 1 : 
\begin{itemize}
    \item with \verb"\ref" : \ref{sec:bla}
    \item with \verb"\vref" : \vref{sec:bla}
          = error "!Missing \verb"\endcsname" inserted" 
    \item with \verb"\cref" : \cref{sec:bla}
          = error "!Missing \verb"\endcsname" inserted"       
\end{itemize}

\newpage 
\section{Third bla bla}
Test section 1 : 
\begin{itemize}
    \item with \verb"\ref" : \ref{sec:bla}
    \item with \verb"\vref" : \vref{sec:bla}
          = error "!Missing \verb"\endcsname" inserted" 
    \item with \verb"\cref" : \cref{sec:bla}
          = error "!Missing \verb"\endcsname" inserted"       
\end{itemize}
\end{document}

I get the error !Missing \endcsname inserted and more other after… (same error with vref as for cref.

How is it possible to resolve this ? I don't find an answer on this forum nor on the net.

I will use those packages (vref and cref) for my customized environnements, for exemple with such a macro-box :

\newtheorem{theoreme}{{\sffamily Théorème}}[section]

\newcommand{\boxthm}[2]
{{\colorbox{yellow}{\begin{minipage}{0.98\linewidth}
      \begin{theoreme}\label{thm:#1}
        {\sffamily ~\\#2}
      \end{theoreme}
\end{minipage}}}\\~}

I presume that if I can resolve the problem for a section, I also get the tip for all my macro-boxes (thm, definitions, algorithms, lemma, examples, …) ?

Best Answer

The problem is that varioref and cref don't like babel shorthands in the labels. Since the colon has a special meaning for French, you get that strange errors.

\documentclass{article}
\usepackage[a4paper]{geometry}
\geometry{top=25mm,bottom=25mm,inner=25mm,outer=20mm,
  marginparwidth=1cm,marginparsep=10pt}

\usepackage[T1]{fontenc}
\usepackage[ansinew]{inputenc}
\usepackage[english,french]{babel}
\usepackage{microtype} % loads also ifpdf

\usepackage{xcolor}

\usepackage{varioref}

\ifpdf
  \usepackage[pagebackref=true,hyperindex=true,colorlinks=true]{hyperref}
  \hypersetup{pdfstartview={FitH}, bookmarksnumbered={true}}
\else
  \usepackage[hypertex=true,hyperindex=true,colorlinks=false]{hyperref}
\fi

\usepackage{cleveref}

\begin{document}
\section{Bla bla}\label{sec-bla}
\lipsum[1]

\section{Second bla bla}
Test section 1 : 
\begin{itemize}
    \item with \verb|\ref| : \ref{sec-bla}
    \item with \verb|\vref| : \vref{sec-bla}
    \item with \verb|\cref| : \cref{sec-bla}
\end{itemize}

\newpage

\vref{sec-bla}
\end{document}

Some notes. The packages ae and aeguill are really obsolete and don't have really good metric files.

Better use the Type1 fonts that are provided by the CM-Super package (it depends on what distribution you're using how you install them) or say

\usepackage{lmodern}
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