<type 'exceptions.TypeError'>: 'dbus.Struct' object does not support item assignment

Binary package hint: aptdaemon

I was using Ubuntu Software Center when several errors show up.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: aptdaemon 0.40+bzr541-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.37-12.26-generic 2.6.37
Uname: Linux 2.6.37-12-generic i686
NonfreeKernelModules: fglrx
Annotation: Installation of the package file failed
Architecture: i386
Date: Tue Jan 25 21:23:53 2011
DesktopFile: /usr/share/aptdaemon/aptdaemon.desktop
ExecutablePath: /usr/sbin/aptd
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110124.2)
PackageArchitecture: all
SourcePackage: aptdaemon
Title: <type 'exceptions.TypeError'>: 'dbus.Struct' object does not support item assignment
TransactionDepends: [[], [], [], [], [], [], []]
TransactionKwargs: {'path': dbus.String(u'/home/piet/Bureaublad/nautilus-dropbox_0.6.7_i386.deb'), 'force': dbus.Boolean(False)}
TransactionLocale: nl_NL.UTF8
TransactionPackages: [[], [], [], [], [], []]
TransactionRole: role-install-file