upgradeprovision crashed with ImportError in __main__: libwbclient.so: cannot open shared object file: No such file or directory

[Iliyan]

Binary package hint: samba4

During dist-upgrade the failure was detected in natty 11.04

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: samba4 4.0.0~alpha15~git20110124.dfsg1-2
ProcVersionSignature: Ubuntu 2.6.38-1.28-generic 2.6.38-rc2
Uname: Linux 2.6.38-1-generic i686
Architecture: i386
Date: Sat Jan 29 22:29:52 2011
ExecutablePath: /usr/share/samba/setup/upgradeprovision
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
InterpreterPath: /usr/bin/python2.7
ProcCmdline: python /usr/share/samba/setup/upgradeprovision --full
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=bg_BG.utf8
 LC_MESSAGES=en_US.utf8
 SHELL=/bin/bash
PythonArgs: ['/usr/share/samba/setup/upgradeprovision', '--full']
SourcePackage: samba4
Title: upgradeprovision crashed with ImportError in __main__: libwbclient.so: cannot open shared object file: No such file or directory
Traceback:
 Traceback (most recent call last):
   File "/usr/share/samba/setup/upgradeprovision", line 42, in <module>
     from samba.auth import system_session, admin_session
 ImportError: libwbclient.so: cannot open shared object file: No such file or directory
UserGroups:

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #709803, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.