<type 'exceptions.NameError'>: global name 'trans' is not defined

[Giovanni Mellini]

Binary package hint: aptdaemon

Got this while installing pdfmod on Ubuntu Software Center

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: aptdaemon 0.41+bzr646-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
Annotation: Applying software changes failed
Architecture: i386
Date: Mon Apr 18 20:06:48 2011
DesktopFile: /usr/share/aptdaemon/aptdaemon.desktop
ExecutablePath: /usr/sbin/aptd
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110302)
PackageArchitecture: all
SourcePackage: aptdaemon
Title: <type 'exceptions.NameError'>: global name 'trans' is not defined
TransactionDepends: [[], [], [], [], [], [], []]
TransactionErrorCode: error-unknown
TransactionKwargs: {}
TransactionLocale: it_IT.UTF8
TransactionOutput:

TransactionPackages: [[dbus.String(u'pdfmod')], [], [], [], [], []]
TransactionRole: role-commit-packages
UpgradeStatus: Upgraded to natty on 2011-03-25 (24 days ago)