Re: [13.0.0] TeX-auto-parse-region: Wrong type argument: stringp, nil

[Tassilo Horn]

Denis Bitouzé <denis.bitouze@univ-littoral.fr> writes:

Hi Denis,

> since AUCTeX has been updated to 13.0.0, it cannot be used anymore
> with GNU Emacs 27.1 (build 2, x86_64-pc-linux-gnu, GTK+ Version
> 3.24.8).
>
> Steps to reproduce:
>
> 1. emacs -Q &
> 2. C-x C-e on each line of:
>    ┌────
>    │ (package-initialize)  
>    │ (setq TeX-auto-save t)
>    │ (setq TeX-parse-self t)
>    └────
> 3. Open `.tex` file.
>
>   │ Mark set [4 times]
>   │ nil
>   │ Package cl is deprecated
>   │ t [2 times]
>   │ Applying style hooks...
>   │ ...
>   │ Loading /home/bitouze/.emacs.d/elpa/auctex-13.0.0/style/ngerman.elc...done
>   │ TeX-auto-parse-region: Wrong type argument: stringp, nil
>   └────

As you might imagine, that doesn't happen for me (and my simple test TeX
file).  I assumed it might have something to do with the ngerman style
so added it to my file but still no error.

Please do `M-x toggle-debug-on-error RET' after step 2 and before step 3
above.  That should pop up a *Backtrace* buffer telling us where the
error happens.

Thanks,
Tassilo