Re: Compilation fails with eqnarray after reinstalling Miktex

Am Sun, 8 Jun 2014 14:08:33 +0200 schrieb Marco Taboga:

> I have a script that extracts math formulae from a tex file, produces a
> small standalone file for each formula and compiles it with pdflatex. The
> standalone pdf files are then used to produce png images of the formulae.
> The script has always worked smoothly with Miktex 2.8 under windows Vista.
> Now that I have updated to version 2.9 and Windows 7, it does not work any
> longer. Every time it encounters an eqnarray environment, it gives the
> following error:
> 
>  ! Missing \endgroup inserted.
> <inserted text>
>                 \endgroup
> l.6 \begin{eqnarray}
> 
> For example, I get this error when I run pdflatex on the following simple
> file:
> 
> \documentclass[12pt]{standalone}
> 
> \begin{document}
> 
> \begin{eqnarray}
> 
> 1&=&1\\
> 1&=&1
> 
> \end{eqnarray}
> 
> \end{document}
> 
> Why am I getting this error? Has support for eqnarray been discontinued in
> new versions of Miktex?

The standalone.cls changed a default (years ago, I already get your
error in texlive 2012). You need to use the option preview or
varwidth if you want to use such environments in standalone:

http://tex.stackexchange.com/a/50171/2388

-- 
Ulrike Fischer 
http://www.troubleshooting-tex.de/


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