update-manager crashed with TypeError in _on_synaptic_exit()

[vongoldi]

Binary package hint: update-manager

when i check for update, update-manager chrash

ProblemType: Crash
DistroRelease: Ubuntu 10.10
Package: update-manager 1:0.142.15
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
NonfreeKernelModules: fglrx
Architecture: i386
Date: Thu Sep 30 18:27:03 2010
ExecutablePath: /usr/bin/update-manager
InstallationMedia: Kubuntu 10.10 "Maverick Meerkat" - Release Candidate i386 (20100928.3)
InterpreterPath: /usr/bin/python2.6
PackageArchitecture: all
ProcCmdline: /usr/bin/python2.6 /usr/bin/update-manager
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/update-manager']
SourcePackage: update-manager
Title: update-manager crashed with TypeError in _on_synaptic_exit()
Traceback:
 Traceback (most recent call last):
   File "/usr/lib/python2.6/dist-packages/UpdateManager/backend/InstallBackendSynaptic.py", line 37, in _on_synaptic_exit
     self.emit("action-done", action)
 TypeError: 2 parameters needed for signal action-done; 1 given
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[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 #631328, 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.