pycentral crashed with AttributeError in prepare()

[Prunus dulcis]

Binary package hint: python-central

On my recently installed and fully patched (except for package "onboard") Ubuntu 8.04 Alpha 5
this crash report comes every time, I try to update the package "onboard" to version 0.91.
The installation gives the error-value 1 together with the following message (in German due to German
installation):
E: /var/cache/apt/archives/onboard_0.91_all.deb: Unterprozess pre-installation script gab den Fehlerwert 1 zurück

This leads instantly to the crash of python-central, according to the bug-report ...

ProblemType: Crash
Architecture: i386
Date: Thu Feb 28 18:34:00 2008
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/bin/pycentral
InterpreterPath: /usr/bin/python2.5
Package: python-central 0.5.60ubuntu4
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/pycentral pkgprepare onboard
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/X11R6/bin
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/pycentral', 'pkgprepare', 'onboard']
SourcePackage: python-central
Title: pycentral crashed with AttributeError in prepare()
Uname: Linux 2.6.24-10-generic i686
UserGroups: