Compilation fails with XeLaTeX: "Extra \endgroup"

[ComFreek]

I tried building sample-jules-verne-shar.tex as follows:

xelatex.exe -no-pdf -shell-escape -synctex=1 -halt-on-error -8bit -no-pdf -recorder -output-directory="build" ".\sample-jules-verne-sharp.tex"

But I get:

! Extra \endgroup.
\document ->\endgroup 
                      \let \BeforeStartOfDocument \@firstofone \cpt@beforest...
l.43 \begin{document}

PS: Is this template still maintained (possibly somewhere else)?

[ojdo]

I faced the same error. Workaround/fix: comment out line 4 cv4tw.cls:

%\RequirePackage{newenviron}

Apparently it is unused anyway.