[Bug 1144058] Re: update-manager crashes with UnboundLocalError: local variable 'installed_file' referenced before assignment

[sampo555]

*** This bug is a duplicate of bug 1142400 ***
    https://bugs.launchpad.net/bugs/1142400

Thank you for taking the time to report this bug and helping to make
Ubuntu better. This particular bug has already been reported and is a
duplicate of bug 1142400, so it is being marked as such. Please look at
the other bug report to see if there is any missing information that you
can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report. Feel free to continue to report any other bugs you may
find.


** This bug has been marked a duplicate of bug 1142400
   update-manager crashed with UnboundLocalError in _get_application_for_package(): local variable 'installed_file' referenced before assignment

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https://bugs.launchpad.net/bugs/1144058

Title:
  update-manager crashes with UnboundLocalError: local variable
  'installed_file' referenced before assignment

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  Running update-manager results in the following crash:

  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/UpdateManager/Core/UpdateList.py", line 234, in _get_application_for_package
      desktop_file)
    File "/usr/lib/python3/dist-packages/gi/types.py", line 137, in constructor
      return info.invoke(cls, *args, **kwargs)
  TypeError: constructor returned NULL

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/UpdateManager/UpdateProgress.py", line 78, in _on_backend_done
      self.window_main.start_available(not success)
    File "/usr/lib/python3/dist-packages/UpdateManager/UpdateManager.py", line 186, in start_available
      self.refresh_cache()
    File "/usr/lib/python3/dist-packages/UpdateManager/UpdateManager.py", line 313, in refresh_cache
      self.update_list.update(self.cache)
    File "/usr/lib/python3/dist-packages/UpdateManager/Core/UpdateList.py", line 416, in update
      self.update_groups = self._make_groups(cache, upgrade_pkgs)
    File "/usr/lib/python3/dist-packages/UpdateManager/Core/UpdateList.py", line 337, in _make_groups
      app = self._get_application_for_package(pkg)
    File "/usr/lib/python3/dist-packages/UpdateManager/Core/UpdateList.py", line 238, in _get_application_for_package
      (installed_file, e))
  UnboundLocalError: local variable 'installed_file' referenced before assignment

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: update-manager 1:0.183
  ProcVersionSignature: Ubuntu 3.8.0-8.17-generic 3.8.0
  Uname: Linux 3.8.0-8-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.8-0ubuntu4
  Architecture: amd64
  Date: Mon Mar  4 11:12:24 2013
  GsettingsChanges:
   b'com.ubuntu.update-manager' b'first-run' b'false'
   b'com.ubuntu.update-manager' b'launch-time' b'1362391615'
   b'com.ubuntu.update-manager' b'show-details' b'true'
   b'com.ubuntu.update-manager' b'window-height' b'1031'
   b'com.ubuntu.update-manager' b'window-width' b'1920'
  InstallationDate: Installed on 2013-02-10 (21 days ago)
  InstallationMedia: Xubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130210)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: update-manager
  UpgradeStatus: No upgrade log present (probably fresh install)

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