update-manager crashed with EOFError in /usr/lib/python2.7/dist-packages/UpdateManager/UpdateManager.py: EOF read where object expected

[alexanghh]

Binary package hint: update-manager

1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu.
Description: Ubuntu Natty (development branch)
Release: 11.04

2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center.
update-manager:
  Installed: 1:0.147.4
  Candidate: 1:0.147.4
  Version table:
 *** 1:0.147.4 0
        500 http://archive.ubuntu.com/ubuntu/ natty/main amd64 Packages
        100 /var/lib/dpkg/status

3) What you expected to happen.
Expected to see update manager UI.

4) What happened instead.
Update manager crashed before I can see the UI.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: update-manager 1:0.147.4
ProcVersionSignature: Ubuntu 2.6.38-8.41-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Fri Apr 8 23:42:02 2011
ExecutablePath: /usr/bin/update-manager
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python2.7 /usr/bin/update-manager
ProcEnviron:
 LANGUAGE=en_SG:en
 PATH=(custom, user)
 LANG=en_SG.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/update-manager']
SourcePackage: update-manager
Title: update-manager crashed with EOFError in /usr/lib/python2.7/dist-packages/UpdateManager/UpdateManager.py: EOF read where object expected
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[RedSingularity (redsingularity)]

Since there is no personal info/passwords in this report, I am marking it public.

[RedSingularity (redsingularity)]

Thanks for reporting this. Are you still having the problem with the latest updates?

[RedSingularity (redsingularity)]

Closing due to inactivity.
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http://wiki.ubuntu.com/BugSquad

[Brian Murray (brian-murray)]

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 1058884, 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.