Rhythmbox fails to start, cites music store errors

It might be worth mentioning that I have Ubuntu One unchecked in Startup Applications as I don't use the file sharing, but still want to use Rhythmbox. This is probably the cause for the problem.

I think the real bug here is that Rhythmbox should still start even if it can't start the Ubuntu One music store due to an error.

It should still start, yes, not sure why it doesn't. But yes, to use the music store you need to have syncdaemon running, so, can you please run:

$ u1sdtool -c

and see if it starts now? I'll have a look at why it prevents rhythmbox from starting

I have the very same problem.
Running u1sdtool -c has no effect, it seems to be a bug within ubuntu one...

Here is the output of rhythmbox started from a terminal:
** (rhythmbox:3410): DEBUG: Loading the real store page

** (rhythmbox:3410): WARNING **: Syncdaemon already connected, not connecting again

liboauth: data to sign='GET&https%3A%2F%2Fone.ubuntu.com%2Fmusic%2Flogin&oauth_callback%3DNone%26oauth_consumer_key%3Dubuntuone%26oauth_nonce%3DFMOUtxEopgzqPFqYALh9w1Qoe7G%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1272920111%26oauth_token%3DXhdLW5bVzdxBXnK0031z%26oauth_verifier%3DNone%26oauth_version%3D1.0'

liboauth: key='hammertime&x7GfD1KfKvFvnnDbb3Qf6pfbSlCWmKmVXDbG2DjZQkxhqVd4kp8TXWbjWPkqXZNHht617l2tBkfmBWPb'

** (rhythmbox:3410): DEBUG: navigation requested to https://one.ubuntu.com/music/login?oauth_callback=None&oauth_consumer_key=ubuntuone&oauth_nonce=FMOUtxEopgzqPFqYALh9w1Qoe7G&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1272920111&oauth_token=XhdLW5bVzdxBXnK0031z&oauth_verifier=None&oauth_version=1.0&oauth_signature=GTZcBV4E%2BJd3d%2FKjo34lMBi%2BAo8%3D
Segmentation fault

Laryllan, you got a segmentation fault, can you please obtain a backtrace of the crash, as explained in https://wiki.ubuntu.com/DebuggingProgramCrash ?

Rodrigo, here is the backtrace and another logs.

It looks like my problem also concerned with last.fm plugin. Here is my story:
Rhythmbox just added own icon to indicator applet and then it crashed. I uninstalled rhythmbox music store plugin and tried to run it again. There was some advance because it crashed approximately after 5-10 seconds. Of course it was still unusable.

Some minutes ago I looked over output of "rhythmbox -d" and noticed that it crashed just after this line: "[0x8728028] [rb_audioscrobbler_do_handshake] rb-audioscrobbler.c:785: Performing handshake with Audioscrobbler server:*here is long url*". For the few seconds while rhythmbox works I managed to disable last.fm plugin, restarted player and it works! So rhythmbox is running normally without the two plugins at the moment. If I install music store again rhythmbox will crash as I described at the beginning.

this is what my terminal produces:

"ecmpeek@ecmpeek-desktop:~$ rhythmbox
** (rhythmbox:5733): DEBUG: Loading the real store page

** (rhythmbox:5733): WARNING **: Syncdaemon already connected, not connecting again

liboauth: data to sign='GET&https%3A%2F%2Fone.ubuntu.com%2Fmusic%2Flogin&oauth_callback%3DNone%26oauth_consumer_key%3Dubuntuone%26oauth_nonce%3DqyjGeZq3nlf_lHsQUT8%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1276167671%26oauth_token%3D2mL2mmrKMBg1Mxq8VMQG%26oauth_verifier%3DNone%26oauth_version%3D1.0'

liboauth: key='hammertime&HKW18Dk4rNst4pnzLZKrdgdsrpsST6GdDpzphcnbRvN9tNtht3Gs7dmfNGZP9lbHtMX0LMWWC6bk3Pvr'

** (rhythmbox:5733): DEBUG: navigation requested to https://one.ubuntu.com/music/login?oauth_callback=None&oauth_consumer_key=ubuntuone&oauth_nonce=qyjGeZq3nlf_lHsQUT8&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1276167671&oauth_token=2mL2mmrKMBg1Mxq8VMQG&oauth_verifier=None&oauth_version=1.0&oauth_signature=J33MPc%2BMbQX05F%2B1YYfX9kBx%2FSA%3D

Rhythmbox tries to gain a connection with Ubuntu One. It is ridiculous that I have to open Ubuntu One in order to start Rhythmbox.

This also affects me. Uninstalling the music store let me get past the segfault, and I could play music. But when I try to listen to an internet radio station, it crashes as soon as I press play.

Considering the last.fm report above, maybe there's some problem with how rhythmbox copes with some people's networking setups.

This fixed it for me, though it's probably not a good workaround for everyone. I changed the following line in /etc/nsswitch.conf from:

hosts: files mdns4_minimal [NOTFOUND=return] wins dns mdns4

to:

hosts: files mdns4_minimal [NOTFOUND=return] dns mdns4

So I guess there's a rhythmbox + winbind incompatibility.

Thanks, Jim. This workaround fixes the problem.

Thanks, Jim Your suggestion worked for me aswell.

I've the same problem. It a fresh 10.04 installation where I've updated directly to 10.10. I am connected with my Ubuntu One account.

Terminal start (I use the Dutch version):

(rhythmbox:1812): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed
** Message: pygobject_register_sinkfunc is deprecated (GstObject)
** Message: useQuirks: 0 / 0 /
Traceback (most recent call last):
  File "/usr/lib/rhythmbox/plugins/umusicstore/__init__.py", line 43, in activate
    self.music_store_widget.activate(shell)
  File "/usr/lib/rhythmbox/plugins/umusicstore/MusicStoreWidget.py", line 57, in activate
    self.entry_type = self.db.entry_register_type("U1EntryType")
AttributeError: '__main__.RhythmDBTree' object has no attribute 'entry_register_type'
** Message: useQuirks: 0 / 0 /
** Message: useQuirks: 0 / 0 /
** Message: useQuirks: 0 / 0 /
** Message: useQuirks: 0 / 0 /
** Message: useQuirks: 0 / 0 /
** Message: useQuirks: 0 / 0 /
** Message: useQuirks: 0 / 0 /
** (rhythmbox:1812): DEBUG: Loading the real store page

** (rhythmbox:1812): WARNING **: Got less number of items in credentials hash table than expected!
** Message: useQuirks: 0 / 0 / one.ubuntu.com
** (rhythmbox:1812): DEBUG: navigation requested to https://one.ubuntu.com/music/store-no-token
** Message: useQuirks: 0 / 0 / one.ubuntu.com
** Message: useQuirks: 0 / 0 / one.ubuntu.com

(rhythmbox:1812): RhythmDB-WARNING **: Unexpected entry type

(rhythmbox:1812): RhythmDB-WARNING **: Attempt to read 'type' of unhandled type GObject
**
RhythmDB:ERROR:rhythmdb-query.c:480:rhythmdb_read_encoded_property: code should not be reached
Afgebroken (geheugendump gemaakt)

@ivo is this still the case?
@all Does this still happen for any of you? I can't reproduce.

I think this shouldn't happen anymore, since we never call call current_status DBus method. We can still timeout on some other DBus calls, so attaching a branch that prevents the music store widget to make DBus calls until the daemon is really ready to respond

libubuntuone (0.3.7-0ubuntu1) maverick; urgency=low

  * New upstream release:
    - Make sure syncdaemon is ready before making DBus calls, to avoid timeouts
      (Rodrigo Moya) (LP: #565648)

 -- Rodrigo Moya <email address hidden> Thu, 16 Sep 2010 00:31:04 +0200