Software Centre crashes immediately upon attempt to open

[tsj]

Software Center crashes upon any attempt to open through launcher or command line; the window appears briefly then closes without trying to send a bug report. Here' some basic info:

tsj@linux-laptop:~$ lsb_release -rd
Description: Ubuntu quantal (development branch)
Release: 12.10
tsj@linux-laptop:~$ apt-cache policy software-center
software-center:
  Installed: 5.2.1
  Candidate: 5.2.1
  Version table:
 *** 5.2.1 0
        500 http://us.archive.ubuntu.com/ubuntu/ quantal/main amd64 Packages
        100 /var/lib/dpkg/status
tsj@linux-laptop:~$

Here's the error message when trying to open through terminal:

tsj@linux-laptop:~$ software-center
2012-05-16 14:41:44,918 - softwarecenter.ui.gtk3.app - INFO - setting up proxy 'None'
2012-05-16 14:41:44,930 - softwarecenter.db.database - INFO - open() database: path=None use_axi=True use_agent=True
2012-05-16 14:41:45,084 - softwarecenter.region - WARNING - failed to use geoclue: 'org.freedesktop.Geoclue.Error.notAvailable: Geoclue master client has no usable Address providers'
2012-05-16 14:41:45,584 - softwarecenter.backend.reviews - WARNING - Could not get usefulness from server, no username in config file
2012-05-16 14:41:45,990 - softwarecenter.db.pkginfo_impl.aptcache - INFO - aptcache.open()
Traceback (most recent call last):
  File "/usr/bin/software-center", line 176, in <module>
    app.run(args)
  File "/usr/share/software-center/softwarecenter/ui/gtk3/app.py", line 1343, in run
    self.show_available_packages(args)
  File "/usr/share/software-center/softwarecenter/ui/gtk3/app.py", line 1273, in show_available_packages
    self.view_manager.set_active_view(ViewPages.AVAILABLE)
  File "/usr/share/software-center/softwarecenter/ui/gtk3/session/viewmanager.py", line 149, in set_active_view
    view_widget.init_view()
  File "/usr/share/software-center/softwarecenter/ui/gtk3/panes/availablepane.py", line 133, in init_view
    SoftwarePane.init_view(self)
  File "/usr/share/software-center/softwarecenter/ui/gtk3/panes/softwarepane.py", line 233, in init_view
    self.datadir)
  File "/usr/share/software-center/softwarecenter/ui/gtk3/views/appdetailsview.py", line 886, in __init__
    self._layout_page()
  File "/usr/share/software-center/softwarecenter/ui/gtk3/views/appdetailsview.py", line 1185, in _layout_page
    self.pkg_statusbar = PackageStatusBar(self)
  File "/usr/share/software-center/softwarecenter/ui/gtk3/views/appdetailsview.py", line 176, in __init__
    self.progress.set_data("transparent-bg-hint", True)
AttributeError: 'ProgressBar' object has no attribute 'set_data'

Not sure if this is of any help but the Software Centre worked immediately after the 12.10 install & stopped working after I removed the extras repository and installed updates yesterday.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: software-center 5.2.1
ProcVersionSignature: Ubuntu 3.4.0-1.3-generic 3.4.0-rc5
Uname: Linux 3.4.0-1-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
Date: Wed May 16 14:42:17 2012
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120510)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: software-center
UpgradeStatus: No upgrade log present (probably fresh install)

[Gary Lasker (gary-lasker)]

Hi tsj, and 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 1000238, 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. Please continue to report any other bugs you may find.

Many thanks!