update-manager crashes when launching

[Tobias Krais]

When I want to launch update-manager I get the following error:
-----%<-----
tobias@tobias-xps:~$ update-manager
Traceback (most recent call last):
  File "/usr/bin/update-manager", line 33, in <module>
    from UpdateManager.UpdateManager import UpdateManager
  File "/usr/lib/python2.7/dist-packages/UpdateManager/UpdateManager.py", line 99, in <module>
    from Core.roam import NetworkManagerHelper
ValueError: bad marshal data (unknown type code)
-----%<-----

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.14.5
ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
Uname: Linux 3.2.0-24-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
Date: Sun Jun 10 22:02:27 2012
GsettingsChanges:

PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: Upgraded to precise on 2012-04-09 (61 days ago)

[Tobias Krais (tux-spam)]

Since today the failure no more occurs. Whoever fixed it. Thanks a lot!