Mismatched LaTeX support files detected.

[Ulrike Fischer]

Am Mon, 31 Jan 2022 10:46:56 +0100 schrieb Zdenek Wagner:

> Hi,
> 
> this is not a problem of a format but of packages. As Joseph wrote,
> you should put \filelist above \documentclass and your log file will
> then contain the list of all files loaded. It will explain the reason
> of the mismatch.

It is a format problem. If the format has been made with expl3 files
different to those now present in the system LaTeX will complain.
Typically remaking the format solves that. Sometimes you also have
to delete some stray local formats.


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