Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apt/cache.py", line 178, in __getitem__
    return self._weakref[key]
  File "/usr/lib/python3.2/weakref.py", line 69, in __getitem__
    o = self.data[key]()
KeyError: 'rhythmbox-ubuntuone-music-store'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 113, in _apt_pkg
    return self._cache()[package]
  File "/usr/lib/python3/dist-packages/apt/cache.py", line 185, in __getitem__
    raise KeyError('The cache has no package named %r' % key)
KeyError: "The cache has no package named 'rhythmbox-ubuntuone-music-store'"

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/share/apport/apport-gtk", line 575, in <lambda>
    GLib.idle_add(lambda: self.collect_info(on_finished=self.ui_update_view))
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 983, in collect_info
    icthread.exc_raise()
  File "/usr/lib/python3/dist-packages/apport/REThread.py", line 64, in exc_raise
    raise self._exception[1].with_traceback(self._exception[2])
  File "/usr/lib/python3/dist-packages/apport/REThread.py", line 34, in run
    self._retval = self.__target(*self.__args, **self.__kwargs)
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 106, in thread_collect_info
    elif not apport.packaging.is_distro_package(report['Package'].split()[0]):
  File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 178, in is_distro_package
    pkg = self._apt_pkg(package)
  File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 115, in _apt_pkg
    raise ValueError('package %s does not exist' % package)
ValueError: package rhythmbox-ubuntuone-music-store does not exist