Well, when I closed the Sofware Center, Apport launches.
Here is the repport, hoping Apport’s information could be useful.
Note that during my upgrade to Oneiric, I got several problems and some of my packages might not be very well set.
DistroRelease: Ubuntu 11.10
Package: software-center 5.0.2
ProcVersionSignature: Ubuntu 3.0.0-13.21-generic 3.0.6
Uname: Linux 3.0.0-13-generic x86_64
Date: Thu Nov 3 16:05:36 2011
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
ProcCmdline: /usr/bin/python /usr/bin/software-center
PATH=(custom, no user)
Title: software-center crashed with TypeError in _get_combo_children(): object of type 'NoneType' has no len()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin audio cdrom dialout dip fax fuse lpadmin netdev plugdev sambashare tape video