[tex-live] A problem after todaty update

[David Carlisle]

This may be (although I haven't fully traced yet) related to this bug
reported here

https://github.com/latex3/latex2e/issues/43

although that (and the error message text) are related to possible
mis-use of the date argument to the latexrelease class which isn't
used here.



You can avoid the error by giving latex the date it is looking for,
but this is just to get your document working again, it clearly isn't
the recommended solution (which is still to be determined)

David

\documentclass{scrbook}

\usepackage{classicthesis}

\def\requestedLaTeXdate{20180412}
\usepackage{mhchem}

\begin{document}
Hello!
\end{document}