Compilation fails with eqnarray after reinstalling Miktex

Question

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 latex?

Thanks for any help you might provide.

There are empty lines in eqnaarray environment in your file. They generate errors. — Przemysław Scherwentke, Jun 08 '14 at 21:41
sorry I removed the spaces that were not present in the original code. As I said everything worked in previous versions — user4422, Jun 08 '14 at 21:50
Have you tried align? http://tex.stackexchange.com/questions/196/eqnarray-vs-align — The Almighty Bob, Jun 08 '14 at 21:51
Welcome to TeX.SX! Why standalone? Does the same happen with article, or with \documentclass[12pt,varwidth]{standalone}? — Torbjørn T., Jun 08 '14 at 21:54
The reason it stopped working when you upgraded is that the default behaviour of standalone has changed in newer versions, see http://tex.stackexchange.com/questions/50162/how-to-make-a-standalone-document-with-one-equation — Torbjørn T., Jun 08 '14 at 22:24

Compilation fails with eqnarray after reinstalling Miktex

0 Answers0