software-center crashed with AttributeError in _on_button_apply_clicked(): type object 'AppDetailsViewBase' has no attribute 'apply_changes'

[angel orna]

This problem happened when I try to install a program .

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: software-center 5.1.2.1
ProcVersionSignature: Ubuntu 3.2.0-1.3-generic 3.2.0-rc2
Uname: Linux 3.2.0-1-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.90-0ubuntu1
Architecture: amd64
CrashCounter: 1
Date: Fri Nov 25 21:00:52 2011
ExecutablePath: /usr/share/software-center/software-center
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/software-center
PythonArgs: ['/usr/bin/software-center']
SourcePackage: software-center
Title: software-center crashed with AttributeError in _on_button_apply_clicked(): type object 'AppDetailsViewBase' has no attribute 'apply_changes'
Traceback:
 Traceback (most recent call last):
   File "/usr/share/software-center/softwarecenter/ui/gtk3/views/appdetailsview_gtk.py", line 579, in _on_button_apply_clicked
     AppDetailsViewBase.apply_changes(self.view)
 AttributeError: type object 'AppDetailsViewBase' has no attribute 'apply_changes'
UpgradeStatus: Upgraded to precise on 2011-11-11 (13 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Gary Lasker (gary-lasker)]

This bug should be fixed in software-center version 5.1.3.

software-center (5.1.3) precise; urgency=low

  [ Robert Roth ]
  * Show For version x string instead of for this version when the
    app version is unknown (LP: #889080)

  [ Michael Vogt ]
  * lp:~mvo/software-center/system-wide-license-key-fixes:
    - add support for installing system-wide license keys
      via aptdaemon
  * lp:~mvo/software-center/appdetailsview-cleanup:
    - lots of cleanup for the details view code, merges appdetailsview
      and appdetailsview_gtk, increases unit test coverage
  * debian/control:
    - update dependency from python-gobject to python-gi

  [ Gary Lasker ]
  * lp:~gary-lasker/software-center/launcher-integration-for-p:
    - implement automatic adding of all newly installed applications to
      the Unity launcher per the latest specification, this can be
      disabled via menu item "View->Add Applications in Launcher"
      (LP: #761851, LP: #756599, LP: #756701, LP: #773769)
  * test/graph/gen-test-coverage-data.sh,
    test/graph/plot-test-coverage.py:
    - create a graph to track unit test coverage

  [ Kiwinote ]
  * lp:~kiwinote/software-center/fix-icon-updating:
    - fix _update_app_icon() regression

 -- Michael Vogt <email address hidden> Thu, 01 Dec 2011 16:03:34 +0100