bug#53678: 29.0.50; Invalid read syntax: "#<" for package install in Windows

[Arash Esbati]

Eli Zaretskii <eliz@gnu.org> writes:

>> Date: Tue, 01 Feb 2022 13:32:11 +0800
>> From:  Shuguang Sun via "Bug reports for GNU Emacs,
>>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
>> 
>> FYI. I failed to find out what makes it. It looks like the local variable in
>> the autoloads file generated by the package process. It add
>> `;; coding: utf-8-emacs-unix`, however, in windows, the file is probablly
>> in a coding of utf-8-emacs-dos. When I try to open the autoload file,
>> Emacs can't regonize the major mode which assumes to be `emacs-lisp-mode`.
>> Unless I change the `;; coding: utf-8-emacs-unix` to
>> `;; coding: utf-8-emacs`, it can be open in the `emacs-lisp-mode`.
>
> Stefan, any thoughts?

The part above was reported in 53529 and was fixed with commit
35cd9197fc.  I suggest to update Emacs and re-install the package(s) in
question.  The error reported in 53529 was different.

Best, Arash