[Bug 990756] Re: update-manager crashed with AttributeError in _try_show_release_notes_textview(): 'Window' object has no attribute 'window'

[Apport retracing service]

*** This bug is a duplicate of bug 859862 ***
    https://bugs.launchpad.net/bugs/859862

Thank you for taking the time to report this crash and helping to make
this software better.  This particular crash has already been reported
and is a duplicate of bug #859862, so 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.  Please continue to report any other bugs you may
find.

** Tags removed: need-duplicate-check

** Attachment removed: "ProcMaps.txt"
   https://bugs.launchpad.net/bugs/990756/+attachment/3113646/+files/ProcMaps.txt

** Attachment removed: "ProcStatus.txt"
   https://bugs.launchpad.net/bugs/990756/+attachment/3113647/+files/ProcStatus.txt

** Visibility changed to: Public

** This bug has been marked a duplicate of private bug 859862

** Visibility changed to: Public

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https://bugs.launchpad.net/bugs/990756

Title:
  update-manager crashed with AttributeError in
  _try_show_release_notes_textview(): 'Window' object has no attribute
  'window'

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

Bug description:
  Trying to upgrade to 12.04LTS

  ProblemType: Crash
  DistroRelease: Ubuntu 11.10
  Package: update-manager 1:0.152.19
  ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
  Uname: Linux 3.0.0-12-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 1.23-0ubuntu1
  Architecture: amd64
  Date: Sun Apr 29 07:26:43 2012
  ExecutablePath: /usr/bin/update-manager
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  InterpreterPath: /usr/bin/python2.7
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python /usr/bin/update-manager
  PythonArgs: ['/usr/bin/update-manager']
  SourcePackage: update-manager
  Title: update-manager crashed with AttributeError in _try_show_release_notes_textview(): 'Window' object has no attribute 'window'
  UpgradeStatus: Upgraded to oneiric on 2011-10-16 (195 days ago)
  UserGroups: adm admin audio cdrom dialout fuse lp lpadmin mail mythtv plugdev sambashare sudo users video www-data

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