gnome-codec-install crashed with TransactionFailed in _run()

Binary package hint: gnome-codec-install

Hello,

This bug occurred while testing Maverick beta.
I was installing a package through the Software Center.
It was still downloading when I installed gstreamer0.10-ffmpeg and gstreamer0.10-plugins-bad at Totem prompt. These were queued automatically in the Software Center.
I then tried to install gstreamer0.10-ffmpeg, gstreamer0.10-fluendo-mp3 and gstreamer0.10-plugins-ugly at Rhythmbox prompt.

A dialog appeared saying that software was already installed and that nothing new was going to be installed. I answered "Ok".
Then the crash report appeared.

Regards.

ProblemType: Crash
DistroRelease: Ubuntu 10.10
Package: gnome-codec-install 0.4.7ubuntu2
ProcVersionSignature: User Name 2.6.35-19.28-generic 2.6.35.3
Uname: Linux 2.6.35-19-generic i686
Architecture: i386
Date: Mon Sep 6 12:30:42 2010
ExecutablePath: /usr/bin/gnome-codec-install
InstallationMedia: Ubuntu-Netbook 10.10 "Maverick Meerkat" - Beta i386 (20100902.1)
InterpreterPath: /usr/bin/python2.6
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/gstreamer-codec-install --transient-for=73400406 gstreamer|0.10|rhythmbox|MPEG-1\ Layer\ 3\ (MP3)\ decoder|decoder-audio/mpeg,\ mpegversion=(int)1,\ layer=(int)3
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/gstreamer-codec-install', '--transient-for=73400406', 'gstreamer|0.10|rhythmbox|MPEG-1 Layer 3 (MP3) decoder|decoder-audio/mpeg, mpegversion=(int)1, layer=(int)3']
SourcePackage: gnome-codec-install
Title: gnome-codec-install crashed with TransactionFailed in _run()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare