bug#45713: 27.1; After Package Update Cannot Execute LaTeX Commands

[Arash Esbati]

"Nikolaus Thiel" <klt@fsfe.org> writes:

> A few days ago I upgraded all packages using the command U. Also auc-tex
> has been updated to
>
>     Status: Installed in ‘auctex-13.0.1/’. Delete
>     Version: 13.0.1
>
>
> Today I want to compile a LaTeX file using XeLaTeX
> but I get the folowing error:
>
> Debugger entered--Lisp error: (error "Nonexpansion file")
>   signal(error ("Nonexpansion file"))
>   error("Nonexpansion %s" file)
>   TeX-command-expand("xelatex -interaction=nonstopmode %s")
>   TeX-command("XeLaTeX" TeX-master-file nil)
>   TeX-command-master()
>   TeX-command-menu("XeLaTeX")
>   menu-function-53()
>   funcall-interactively(menu-function-53)
>   call-interactively(menu-function-53 nil nil)
>   command-execute(menu-function-53)

Similiar issues were reported here[1] and here[2].  Can you please
delete AUCTeX via package manager, i.e., really delete and not moving
from `installed' into `dependency', restart Emacs, reinstall AUCTeX and
see if it helps?

Best, Arash

Footnotes:
[1]  https://lists.gnu.org/archive/html/bug-auctex/2020-12/msg00001.html

[2]  https://emacs.stackexchange.com/q/62554/12242