ClockScreenlet.py crashed with AttributeError in redraw_foreground(): 'NoneType' object has no attribute 'render'

[omanni]

tested screenlets in ubuntu 11.04 alpha3 and it crashed

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: screenlets-pack-basic 0.0.1~bzr838+repack-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic i686
Architecture: i386
Date: Tue Mar 29 11:35:40 2011
ExecutablePath: /usr/share/screenlets/screenlets-pack-basic/Clock/ClockScreenlet.py
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110302)
InterpreterPath: /usr/bin/python2.7
ProcCmdline: python -u /usr/share/screenlets/screenlets-pack-basic/Clock/ClockScreenlet.py
ProcEnviron:
 LANGUAGE=fi_FI:en
 LANG=fi_FI.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/share/screenlets/screenlets-pack-basic/Clock/ClockScreenlet.py']
SourcePackage: indiv-screenlets
Title: ClockScreenlet.py crashed with AttributeError in redraw_foreground(): 'NoneType' object has no attribute 'render'
UpgradeStatus: Upgraded to natty on 2011-03-28 (0 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 #742996, 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.