backend_helper.py crashed with DBusException in call_blocking(): org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)

[Heru]

Error while update

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: update-notifier-common 0.117ubuntu3.1
ProcVersionSignature: Ubuntu 3.2.0-2.5-generic 3.2.0-rc3
Uname: Linux 3.2.0-2-generic i686
ApportVersion: 1.90-0ubuntu1
Architecture: i386
Date: Sat Dec 10 06:02:19 2011
DuplicateOf: https://bugs.launchpad.net/bugs/899633
ExecutablePath: /usr/lib/update-notifier/backend_helper.py
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20111129.1)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/lib/update-notifier/backend_helper.py install_all_updates
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/lib/update-notifier/backend_helper.py', 'install_all_updates']
SourcePackage: update-notifier
Title: backend_helper.py crashed with DBusException in call_blocking(): org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #899633, 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.