Hello Guix, I am able to reproduce this with guix c3c003b and GNOME Music 3.34.5. I also get some GDBus errors, but perhaps that's because my desktop is XFCE?
--8<---------------cut here---------------start------------->8--- $ gnome-music removed, grl-bookmarks invoking IsSupported() failed for remote volume monitor with dbus name org.gtk.vfs.UDisks2VolumeMonitor:: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gtk.vfs.UDisks2VolumeMonitor was not provided by any .service files (g-dbus-error-quark, 2) invoking IsSupported() failed for remote volume monitor with dbus name org.gtk.vfs.AfcVolumeMonitor:: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gtk.vfs.AfcVolumeMonitor was not provided by any .service files (g-dbus-error-quark, 2) invoking IsSupported() failed for remote volume monitor with dbus name org.gtk.vfs.GPhoto2VolumeMonitor:: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gtk.vfs.GPhoto2VolumeMonitor was not provided by any .service files (g-dbus-error-quark, 2) invoking IsSupported() failed for remote volume monitor with dbus name org.gtk.vfs.MTPVolumeMonitor:: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gtk.vfs.MTPVolumeMonitor was not provided by any .service files (g-dbus-error-quark, 2) invoking IsSupported() failed for remote volume monitor with dbus name org.gtk.vfs.GoaVolumeMonitor:: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gtk.vfs.GoaVolumeMonitor was not provided by any .service files (g-dbus-error-quark, 2) removed, grl-metadata-store removed, grl-filesystem removed, grl-podcasts Traceback (most recent call last): File "/gnu/store/rkhkqv9lvww40nqs25i8fmwf4870xsvw-gnome-music-3.34.5/bin/..gnome-music-real-real", line 153, in <module> sys.exit(main()) File "/gnu/store/rkhkqv9lvww40nqs25i8fmwf4870xsvw-gnome-music-3.34.5/bin/..gnome-music-real-real", line 148, in main return run_application() File "/gnu/store/rkhkqv9lvww40nqs25i8fmwf4870xsvw-gnome-music-3.34.5/bin/..gnome-music-real-real", line 135, in run_application app = Application('org.gnome.Music') File "/gnu/store/rkhkqv9lvww40nqs25i8fmwf4870xsvw-gnome-music-3.34.5/lib/python3.8/site-packages/gnomemusic/application.py", line 70, in __init__ self._player = Player(self) File "/gnu/store/rkhkqv9lvww40nqs25i8fmwf4870xsvw-gnome-music-3.34.5/lib/python3.8/site-packages/gnomemusic/player.py", line 397, in __init__ self._gst_player = GstPlayer(application) File "/gnu/store/rkhkqv9lvww40nqs25i8fmwf4870xsvw-gnome-music-3.34.5/lib/python3.8/site-packages/gnomemusic/gstplayer.py", line 86, in __init__ self._setup_replaygain() File "/gnu/store/rkhkqv9lvww40nqs25i8fmwf4870xsvw-gnome-music-3.34.5/lib/python3.8/site-packages/gnomemusic/gstplayer.py", line 111, in _setup_replaygain self._filter_bin.add(self._rg_volume) TypeError: Argument 1 does not allow None as a value --8<---------------cut here---------------end--------------->8--- Luis Felipe <luis.felipe...@protonmail.com> writes: > Hi, this happens on Guix System, using Guix 154a4e0 and GNOME Music 3.34.5. > > STEPS TO REPRODUCE > > 1. Click on Activities > 2. Click on Show Apps button (nine dots button) > 3. Click on the Music app > > EXPECTED RESULT > > The application starts. > > UNEXPECTED RESULT > > You can see the application icon displayed next to the GNOME Activities > button with a loading indicator. But, after some seconds, it disappears and > the application never starts. > > ADDITIONAL INFO > > Running the application from a terminal results in the following error: > > ★★★★★★★★★★★★★★★★★★★★ > $ gnome-music > removed, grl-bookmarks > removed, grl-metadata-store > removed, grl-filesystem > Traceback (most recent call last): > File > "/gnu/store/v9vs6yai5dlyf5avly5ni3xxpk7xhfv0-gnome-music-3.34.5/bin/..gnome-music-real-real", > line 153, in <module> > sys.exit(main()) > File > "/gnu/store/v9vs6yai5dlyf5avly5ni3xxpk7xhfv0-gnome-music-3.34.5/bin/..gnome-music-real-real", > line 148, in main > return run_application() > File > "/gnu/store/v9vs6yai5dlyf5avly5ni3xxpk7xhfv0-gnome-music-3.34.5/bin/..gnome-music-real-real", > line 135, in run_application > app = Application('org.gnome.Music') > File > "/gnu/store/v9vs6yai5dlyf5avly5ni3xxpk7xhfv0-gnome-music-3.34.5/lib/python3.8/site-packages/gnomemusic/application.py", > line 70, in __init__ > self._player = Player(self) > File > "/gnu/store/v9vs6yai5dlyf5avly5ni3xxpk7xhfv0-gnome-music-3.34.5/lib/python3.8/site-packages/gnomemusic/player.py", > line 397, in __init__ > self._gst_player = GstPlayer(application) > File > "/gnu/store/v9vs6yai5dlyf5avly5ni3xxpk7xhfv0-gnome-music-3.34.5/lib/python3.8/site-packages/gnomemusic/gstplayer.py", > line 86, in __init__ > self._setup_replaygain() > File > "/gnu/store/v9vs6yai5dlyf5avly5ni3xxpk7xhfv0-gnome-music-3.34.5/lib/python3.8/site-packages/gnomemusic/gstplayer.py", > line 111, in _setup_replaygain > self._filter_bin.add(self._rg_volume) > TypeError: Argument 1 does not allow None as a value > ★★★★★★★★★★★★★★★★★★★★ > > > --- > Luis Felipe López Acevedo > https://luis-felipe.gitlab.io/ -- Sarah