[Bug 768328] Re: software-center crashed with AttributeError in _on_trans_finished(): 'NoneType' object has no attribute 'code'

[Apport retracing service]

*** This bug is a duplicate of bug 761642 ***
    https://bugs.launchpad.net/bugs/761642

Thank you for taking the time to report this crash and helping to make
Ubuntu better.  This particular crash has already been reported and is a
duplicate of bug #761642, 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: "Dependencies.txt"
   https://bugs.launchpad.net/bugs/768328/+attachment/2079511/+files/Dependencies.txt

** Attachment removed: "ProcMaps.txt"
   https://bugs.launchpad.net/bugs/768328/+attachment/2079512/+files/ProcMaps.txt

** Attachment removed: "ProcStatus.txt"
   https://bugs.launchpad.net/bugs/768328/+attachment/2079513/+files/ProcStatus.txt

** This bug has been marked a duplicate of bug 761642
   software-center crashed with AttributeError in _on_trans_finished(): 'NoneType' object has no attribute 'code'

** Visibility changed to: Public

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https://bugs.launchpad.net/bugs/768328

Title:
  software-center crashed with AttributeError in _on_trans_finished():
  'NoneType' object has no attribute 'code'

Status in “software-center” package in Ubuntu:
  New

Bug description:
  Binary package hint: software-center

  Unable to upgrade or update software. It always yes internet
  connection problem but as you observe, I am able to send this message
  over internet

  ProblemType: Crash
  DistroRelease: Ubuntu 11.04
  Package: software-center 3.1.26.4
  ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
  Uname: Linux 2.6.38-7-generic x86_64
  Architecture: amd64
  Date: Thu Apr 21 09:22:09 2011
  ExecutablePath: /usr/share/software-center/software-center
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  InterpreterPath: /usr/bin/python2.7
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python /usr/bin/software-center
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  PythonArgs: ['/usr/bin/software-center']
  SourcePackage: software-center
  Title: software-center crashed with AttributeError in _on_trans_finished(): 'NoneType' object has no attribute 'code'
  Traceback:
   Traceback (most recent call last):
     File "/usr/share/software-center/softwarecenter/backend/aptd.py", line 625, in _on_trans_finished
       if trans.error.code == enums.ERROR_INVALID_PACKAGE_FILE:
   AttributeError: 'NoneType' object has no attribute 'code'
  UpgradeStatus: Upgraded to natty on 2011-04-21 (0 days ago)
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare