Re: No such file or directory, popup

[Philip Kaludercic]

pauline-galea@gmx.com writes:

>> > Emacs 28.0.50 complains with
>> >
>> > File is missing: Cannot open load file, No such file or directory, popup
>>
>> Popup is a third-party library[0], that other third-party packages use.
>>
>> It would seem you (manually?) installed a package that requires a
>> dependency (popup) you do not provide. From your other message I guess
>> it is auto-complete. Have you considered using company? AFAIK it is
>> usually the preferred auto-completion framework nowadays.
>
> I would agree with your evaluation because it is first being called by 
> auto-complete.
> Was not aware of "company" as "auto-complete" was what I had been introduced 
> to.
>
> Have checked and found that "company" is part of GNU ELPA.  I am trying to 
> understand
> an important here.  I have installed "Emacs 25" from my package  manager.  
> Later I
> installed Emacs 27.1 and am trying out the latest development version.
>
> One thing that I am finding confusing is what happens when you install an 
> emacs
> package, because it does not look as though, the setup will apply to the 
> latest
> development verison, even if I use the same init files.

How did you install 25 and 27.1? It might be that they are using some
configuration specific to your system that adds additional directories
to load elisp from, that the development version is missing. Does
anything change if you run

         $ emacs --no-site-lisp

with an older version?

(Also, how did you install auto-complete? Via M-x package-install or
your system package manager?)

-- 
        Philip K.