[Bug 1013490] Re: update-manager crashed with ImportError in /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py: No module named plugincore.manager

[Jean-Baptiste Lallement]

** Also affects: update-manager (Ubuntu Quantal)
   Importance: High
     Assignee: Barry Warsaw (barry)
       Status: Confirmed

** Tags added: rls-q-incoming

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https://bugs.launchpad.net/bugs/1013490

Title:
  update-manager crashed with ImportError in /usr/lib/python3/dist-
  packages/DistUpgrade/DistUpgradeQuirks.py: No module named
  plugincore.manager

Status in “update-manager” package in Ubuntu:
  Confirmed
Status in “update-manager” source package in Quantal:
  Confirmed

Bug description:
  when i start upgrade

  ProblemType: Crash
  DistroRelease: Ubuntu 12.10
  Package: update-manager 1:0.163
  ProcVersionSignature: Ubuntu 3.4.0-5.11-generic 3.4.0
  Uname: Linux 3.4.0-5-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.2.2-0ubuntu2
  Architecture: i386
  Date: Fri Jun 15 07:54:54 2012
  ExecutablePath: /usr/bin/update-manager
  GsettingsChanges:
   
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha i386 (20120524)
  InterpreterPath: /usr/bin/python3.2mu
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python3.2 /usr/bin/update-manager --dist-upgrade
  PythonArgs: ['/usr/bin/update-manager', '--dist-upgrade']
  SourcePackage: update-manager
  Title: update-manager crashed with ImportError in /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py: No module named plugincore.manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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