computer-janitor-gtk crashed with TypeError in verify(): Gtk.Dialog.add_button() argument 1 must be string, not None

[Id2ndR]

Binary package hint: computer-janitor

This occurs when I tried to quit Computer-Janitor while it was computing that can be cleaned up (after 2 successful passes of cleaning).

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: computer-janitor-gtk 2.0.4-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-3.30-generic 2.6.38-rc4
Uname: Linux 2.6.38-3-generic x86_64
Architecture: amd64
Date: Sun Feb 13 11:11:45 2011
ExecutablePath: /usr/share/computerjanitor/computer-janitor-gtk
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64+mac (20101223)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/share/computerjanitor/computer-janitor-gtk
ProcEnviron:
 LANGUAGE=fr_FR:fr:en_GB:en
 LANG=fr_FR.UTF-8
 LC_MESSAGES=fr_FR.utf8
 SHELL=/bin/bash
PythonArgs: ['/usr/share/computerjanitor/computer-janitor-gtk']
SourcePackage: computer-janitor
Title: computer-janitor-gtk crashed with TypeError in verify(): Gtk.Dialog.add_button() argument 1 must be string, not None
UserGroups: adm admin cdrom dialout libvirtd 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 #617643, 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.