software-center crashed with TypeError in run_update_cache()

[WeatherGod]

Binary package hint: software-center

Using the latest daily build of Lucid UNR (January 13, 2010). Booted up in LiveCD mode on my USB stick.

This error occured after adding the universe and multiverse repos through "Software Sources". Looks like the program was updating its package list (maybe?) and then crashed.

ProblemType: Crash
Architecture: i386
Date: Thu Jan 14 02:09:02 2010
DistroRelease: Ubuntu 10.04
ExecutablePath: /usr/share/software-center/software-center
InterpreterPath: /usr/bin/python2.6
LiveMediaBuild: Ubuntu-Netbook 10.04 "Lucid Lynx" - Alpha i386 (20100113)
Package: software-center 1.1.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/software-center
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-10.14-generic
PythonArgs: ['/usr/bin/software-center']
SourcePackage: software-center
Tags: lucid ubuntu-unr
Title: software-center crashed with TypeError in run_update_cache()
Uname: Linux 2.6.32-10-generic i686
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 #496058, 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.