zeitgeist-daemon crashed with AttributeError in close(): 'NoneType' object has no attribute 'execute'

[Paulo Novais]

I have this error after update system on this date.
Shortly after reboot and login.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: zeitgeist-core 0.8.1-1ubuntu1
ProcVersionSignature: Ubuntu 3.0-3.4-generic 3.0.0-rc5
Uname: Linux 3.0-3-generic i686
Architecture: i386
Date: Fri Jul 8 17:18:54 2011
ExecutablePath: /usr/bin/zeitgeist-daemon
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110531.1)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/zeitgeist-daemon
ProcEnviron:
 SHELL=/bin/bash
 LANGUAGE=pt:pt_BR:en
 LANG=pt_PT.UTF-8
PythonArgs: ['/usr/bin/zeitgeist-daemon']
SourcePackage: zeitgeist
Title: zeitgeist-daemon crashed with AttributeError in close(): 'NoneType' object has no attribute 'execute'
UpgradeStatus: No upgrade log present (probably fresh install)
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 #793714, 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.