When mythbuntu-control-centre is installed on Xubuntu 13.04, it generates the following error immediately after it is executed from the command line:
**royg@MythTV:~$ mythbuntu-control-centre
Traceback (most recent call last):
File "/usr/bin/mythbuntu-control-centre", line 40, in <module>
from aptdaemon.gtkwidgets import (AptErrorDialog,
ImportError: cannot import name AptMessageDialog**
When it is executed from the Settings Manager - System dialog box, nothing appears to happen.
A simple way to resolve this error is to edit line 40 (or thereabouts) in /usr/bin/mythbuntu-control-centre, removing the now obsolete(!) reference to AptMessageDialog.
Note that you'll still want to keep the other 2 references in the import statement, so just insert a parenthesis at the end of line before, then delete the line containing AptMessageDialog) entirely.