software-center crashed with AttributeError in _on_expose(): 'NoneType' object has no attribute 'allocation'

[Matt Zimmerman]

Binary package hint: software-center

I opened Software Center, and before I had a chance to do anything in it, there was a crash. This was followed by two subsequent crash notifications, which overwrote the first one, so I'm not sure if the initial crash was something else or not.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: software-center 3.1.22
ProcVersionSignature: Ubuntu 2.6.38-4.31-generic 2.6.38-rc5
Uname: Linux 2.6.38-4-generic x86_64
Architecture: amd64
Date: Fri Mar 4 16:39:03 2011
ExecutablePath: /usr/share/software-center/software-center
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/software-center
ProcEnviron:
 LANGUAGE=en_GB:en
 LANG=en_GB.UTF-8
 LC_MESSAGES=en_GB.utf8
 SHELL=/bin/zsh
PythonArgs: ['/usr/bin/software-center']
SourcePackage: software-center
Title: software-center crashed with AttributeError in _on_expose(): 'NoneType' object has no attribute 'allocation'
Traceback:
 Traceback (most recent call last):
   File "/usr/share/software-center/softwarecenter/view/catview_gtk.py", line 222, in _on_expose
     a = self.whatsnew_carousel.allocation
 AttributeError: 'NoneType' object has no attribute 'allocation'
UpgradeStatus: Upgraded to natty on 2011-02-10 (21 days ago)
UserGroups: adm admin audio cdrom dialout fuse kvm libvirtd lpadmin plugdev sambashare video

[Apport retracing service (apport)]

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 #721704, 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.

[Matt Zimmerman (mdz)]

I just tried again and I *think* I confirmed that the crashes were all the same