On Aug 27, 6:32 am, Jason Grout <jason-s...@creativetrax.com> wrote:

> > Maxima encountered a Lisp error:
>
> > NIL is not of type (OR FILE-STREAM STRING PATHNAME).

If you can launch Maxima by itself, try maxima -g
so you should fall into the Lisp debugger when you
run into that error. What does :backtrace report?

> I made my server_pool user have the same group as the notebook server
> user.  It appears that there is a .cache folder in the notebook server
> user's home folder which contains some ECL-related files, and ECL throws
> errors if it can't find those.

Hmm. First thing that comes to mind is that ASDF
(a Lisp package management doodad) is trying to load
something. I don't know why that would be; I don't
think Maxima directly invokes ASDF. Or it may be
something else entirely. You may need to crosspost
to the ECL mailing list.

HTH

Robert Dodier

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