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I have a problem when I use 'siunitx' and 'mathenv' together.

I wanted to add 'siunitx' to use '\meter' and so one but it seems to have a problem with 'mathenv' :

\documentclass[a4paper]{article}

    % Mathématiques
\usepackage{mathenv}

\usepackage{siunitx}


\title{Test}
\author{Cécile Moulin}
\date{}

\begin{document}
\maketitle
\tableofcontents

text text text
\end{document}

gives the following error :

This is pdfTeX, Version 3.14159265-2.6-1.40.16 (TeX Live 2015/Debian) (preloaded format=pdflatex)
 restricted \write18 enabled.
entering extended mode
(./test.tex
LaTeX2e <2016/02/01>
Babel <3.9q> and hyphenation patterns for 81 language(s) loaded.
(/usr/share/texlive/texmf-dist/tex/latex/base/article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(/usr/share/texlive/texmf-dist/tex/latex/base/size10.clo))
(/usr/share/texlive/texmf-dist/tex/latex/mdwtools/mathenv.sty
(/usr/share/texlive/texmf-dist/tex/latex/mdwtools/mdwtab.sty))
(/usr/share/texlive/texmf-dist/tex/latex/siunitx/siunitx.sty
(/usr/share/texlive/texmf-dist/tex/latex/l3kernel/expl3.sty
(/usr/share/texlive/texmf-dist/tex/latex/l3kernel/expl3-code.tex)
(/usr/share/texlive/texmf-dist/tex/latex/l3kernel/l3pdfmode.def))
(/usr/share/texlive/texmf-dist/tex/latex/l3packages/xparse/xparse.sty)
(/usr/share/texlive/texmf-dist/tex/latex/amsmath/amstext.sty
(/usr/share/texlive/texmf-dist/tex/latex/amsmath/amsgen.sty))
(/usr/share/texlive/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty)
(/usr/share/texlive/texmf-dist/tex/latex/beamer/translator/translator.sty
(/usr/share/texlive/texmf-dist/tex/latex/graphics/keyval.sty)
(/usr/share/texlive/texmf-dist/tex/latex/beamer/translator/translator-language-
mappings.tex))) (./test.aux)
! Missing \endcsname inserted.
<to be read again> 
                   \relax 
l.13 \begin{document}

closed as off-topic by user36296, Stefan Pinnow, Zarko, CarLaTeX, Werner Jun 20 '17 at 14:17

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  • 2
    The mathenv package hasn't be maintained for almost two decades. – egreg Jun 12 '17 at 12:56
  • From the readme (ctan.org/pkg/mdwtools) Contains a collection of mathematical environments with a theme of aligning things in columns. Maybe it's better to check out the famousamsmath package or mathtools (builds on amsmath) package which also provide alignment options. – Dr. Manuel Kuehner Jun 12 '17 at 13:19
  • 1
    The name for the symbol for the formattingis Accent grave. I have tp press Shift plus a key on my German keyboard on order to type it. – Dr. Manuel Kuehner Jun 12 '17 at 14:26
  • 1
    If you don't know why you are using a package, don't use it and wait for an error message. If you don't get one, celebrate! – John Kormylo Jun 12 '17 at 19:06
  • 5
    I'm voting to close this question as it was caused by loading an unnecessary package – user36296 Jun 20 '17 at 10:30