software-center crashed with AttributeError in _refresh_apps_with_apt_cache()

[Maurizio.Colella]

Binary package hint: software-center

Distribution: 10.04
Kernel Version: 2.6.32-16

I got this error closing Software Center.

ProblemType: Crash
Architecture: i386
Date: Tue Mar 9 12:41:01 2010
DistroRelease: Ubuntu 10.04
ExecutablePath: /usr/share/software-center/software-center
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100113)
InterpreterPath: /usr/bin/python2.6
Package: software-center 1.1.16.1
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/software-center
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-16.24-generic
PythonArgs: ['/usr/bin/software-center']
SourcePackage: software-center
Title: software-center crashed with AttributeError in _refresh_apps_with_apt_cache()
Uname: Linux 2.6.32-16-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare