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

[Arash Esbati]

Arash Esbati <arash@gnu.org> writes:

> Hi Nikolaus,
>
> "Nikolaus Thiel" <klt@fsfe.org> writes:
>
> Sorry for my late response.
>
>> I started Emacs from the command line using
>>
>> $ /Applications/MacPorts/Emacs.app/Contents/MacOS/Emacs -Q
>>
>> That produced the following messages in the terminal:
>>
>> Emacs[1071:29235] Failed to initialize color list unarchiver:
>> Error Domain=NSCocoaErrorDomain Code=4864
>> "*** -[NSKeyedUnarchiver
>> _initForReadingFromData:error:throwLegacyExceptions:]: non-keyed
>> archive cannot be decoded by NSKeyedUnarchiver"
>> UserInfo={NSDebugDescription=*** -[NSKeyedUnarchiver
>> _initForReadingFromData:error:throwLegacyExceptions:]: non-keyed
>> archive cannot be decoded by NSKeyedUnarchiver}
>
> I'm not familiar with macOS, so I can't tell what's going on.  I can
> only suspect that you've installed Emacs via MacPorts, and maybe you
> have installed AUCTeX through MacPorts as well.
>
>> I saved the small LaTeX code into a file. Opening it, only the TeX menu 
>> appeared
>> but neither LaTeX nor Command menu. So I used "C-c C-c RET"
>
> It seems that AUCTeX isn't loaded and you end up with Emacs tex-mode.
>
>> pdflatex ends with the expected LaTeX error:
>>
>> bash-3.2$ cd /Users/klaus/Desktop/
>> bash-3.2$ pdflatex \\nonstopmode\\input test.tex
>> This is pdfTeX, Version 3.14159265-2.6-1.40.21 (TeX Live 2020) (preloaded 
>> format=pdflatex)
>>  restricted \write18 enabled.
>> ....
>>
>>
>> xelatex does not even start
>>
>> bash-3.2$ xelatex
>> This is XeTeX, Version 3.14159265-2.6-0.999992 (TeX Live 2020) (preloaded 
>> format=xelatex)
>>  restricted \write18 enabled.
>> **
>
> Be careful here; xelatex is running in interactive mode and expects an
> input.  In your shell, try \relax RET \bye RET.
>
>> If I change the command in *tex-shell* manually to "xelatex 
>> \\nonstopmode\\input
>> test.tex" the file is compiled successfully.
>>
>>
>>
>> The evaluation of
>>
>> (TeX-command-expand "xelatex -interaction=nonstopmode %s")
>>
>> produces the following error:
>>
>> Debugger entered--Lisp error: (void-function TeX-command-expand)
>>   (TeX-command-expand "xelatex -interaction=nonstopmode %s")
>>   eval((TeX-command-expand "xelatex -interaction=nonstopmode %s") nil)
>>   elisp--eval-last-sexp(nil)
>>   eval-last-sexp(nil)
>>   funcall-interactively(eval-last-sexp nil)
>>   call-interactively(eval-last-sexp nil nil)
>>   command-execute(eval-last-sexp)
>
> See above, I think your installation is broken.
>
>> I do not know a recipe how to produce the error on your system.
>>
>> Did you also try on Mac OS X 11.1?
>
> Nope, I'm not on macOS.  Sorry, but I'm out of ideas here.  I can only
> suggest that you delete all your AUCTeX installations (ELPA, MacPorts
> etc.), load a .tex file and do `M-x list-load-path-shadows RET' and see
> if you don't have dupe installations, restart Emacs, and install AUCTeX
> via ELPA.

(I'm going through old bug reports that unfortunately weren't resolved
at the time.)

No further comments, and I can't reproduce this on macOS, so I'm closing
this report.

Best, Arash