paprefs failing due to missing schema

[Daniel Hatton]

Dear All,

I'm trying to run the paprefs configurator for PulseAudio. 
Unfortunately, it consistently fails with an error message of the form

  GLib-GIO-ERROR **: 13:30:25.928: Settings schema
  'org.freedesktop.pulseaudio.module-group' is not installed
  Trace/breakpoint trap

A similar issue has arisen in other distros, where a workaround has been 
developed 
<https://forums.freebsd.org/threads/paprefs-pulseaudio-core-dumped-with-glib-gio-error-settings-schema-org-freedesktop-pulseaudio-module-group-is-not-installed.77370/>, 
which involves obtaining a schema file from the upstream PulseAudio 
source code, then running glib-compile-schemas.  However, I can't 
directly apply this workaround on Guix, because:

1. I don't know where in the Guix filesystem structure to put the schema
   file.
2. I can't find what package to install to make the glib-compile-schemas
   executable available in Guix.

Please advise.

--

Kind regards,

Daniel Hatton

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