update-manager crashed with SystemError in mark_install(): E:Невозможно исправить ошибки, у вас отложены (held) битые пакеты.

[Webfantom]

Binary package hint: update-manager

update-manager crashed with SystemError in mark_in

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: update-manager 1:0.147.6
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
Architecture: i386
Date: Thu Apr 21 19:34:21 2011
ExecutablePath: /usr/bin/update-manager
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110330)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python2.7 /usr/bin/update-manager
ProcEnviron:
 LANGUAGE=ru:en
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/update-manager']
SourcePackage: update-manager
Title: update-manager crashed with SystemError in mark_install(): E:Невозможно исправить ошибки, у вас отложены (held) битые пакеты.
UpgradeStatus: Upgraded to natty on 2011-04-18 (2 days ago)
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 #768007, 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.