detalles tecnicos no se.
solo se que el error ocurrio al actualizar la lista de paquetes del sistema
ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: software-center 5.1.8
ProcVersionSignature: Ubuntu 3.2.0-16.25-generic 3.2.6
Uname: Linux 3.2.0-16-generic x86_64
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
CasperVersion: 1.304
Date: Tue Feb 14 22:37:16 2012
ExecutablePath: /usr/share/software-center/software-center
InterpreterPath: /usr/bin/python2.7
LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120201.1)
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/software-center
ProcEnviron:
PATH=(custom, no user)
LANG=es_ES.UTF-8
SHELL=/bin/bash
PythonArgs: ['/usr/bin/software-center']
SourcePackage: software-center
Title: software-center crashed with AttributeError in __contains__(): 'NoneType' object has no attribute '__contains__'
UpgradeStatus: Upgraded to precise on 2012-02-14 (0 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 920196, so it 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.