What I want to do is combine several articles to form single journal volume. After some googling I found a class named combine seemingly suitable for the task. Unfortunately I had a trouble compiling very minimal code below
\documentclass{combine}
\begin{document}
Some text
\end{document}
The error message I get is 'Extra \endgroup. \begin{document}'. I don't know what's going on here. How can I solve this problem? Or, is there a better alternative for combine?
combineneeds an update. Meanwhile adding this should work around the problem:\makeatletter\@ifclasslater{combine}{2010/07/11}{\errmessage{No longer needed.}}{\AddToHook{env/document/begin}{\begingroup}}\makeatother– Phelype Oleinik Nov 20 '20 at 01:02