Failure after plug-in installed

[Jeff Boes]

After installing a plug-in (sorry, don't know its name now but it's something to do with radio stations), rhythmbox fails silently on start-up from the GUI. On start-up from the command line, I get:

(rhythmbox:20871): Rhythmbox-WARNING **: Could not open device /dev/radio0
/usr/lib/python2.7/dist-packages/gobject/constants.py:24: Warning: g_boxed_type_register_static: assertion `g_type_from_name (name) == 0' failed
  import gobject._gobject
TypeError: metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases
**
ERROR:/build/buildd/pygobject-3.0.0/gi/_gobject/pygobject.c:929:pygobject_new_full: assertion failed: (tp != NULL)
Aborted

It now only starts via:

$ rhythmbox --disable-plugins

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: rhythmbox 2.90.1~20110908-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
Uname: Linux 3.0.0-13-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Fri Dec 2 11:54:21 2011
ExecutablePath: /usr/bin/rhythmbox
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US.UTF-8
SourcePackage: rhythmbox
UpgradeStatus: No upgrade log present (probably fresh install)