programming error when trying to add an account

Binary package hint: cohoba

Sadly, I am not able to test Cohoba because I cannot add accounts.

jeff@ubuntu:~$ /usr/lib/cohoba/cohoba-applet houston
Running installed cohoba, using [@PYTHONDIR@:$PYTHONPATH]
Data Dir: /usr/share/cohoba
Runnin with options: {'mode': None, 'component': 'houston', 'do_trace': False, 'standalone': False} Other arguments are: ['houston']
Running houston mision control
Houston:INFO:Houston listening
Reading file: /home/jeff/.gnome2/cohoba/houston-presence.pickle
Houston:INFO:Hooking-up to existing connections on the bus
Houston:INFO:--Finished hooking-up to existing connections on the bus
Houston:INFO:NetworkMonitor says: 3
Loading manager registry
Supported protocols include 'msn'
Protocol 'msn' supported by 'butterfly'

Traceback (most recent call last): (this is what happens when I click the Add button in the accounts window)
  File "/usr/lib/python2.5/site-packages/cohoba/houston/ui/AccountsWindow.py", line 41, in on_new
    AccountEditorManager().show_account_editor()
  File "/usr/lib/python2.5/site-packages/cohoba/houston/ui/AccountEditor.py", line 179, in show_account_editor
    if self.is_connmgr_available():
  File "/usr/lib/python2.5/site-packages/cohoba/houston/ui/AccountEditor.py", line 184, in is_connmgr_available
    if len(ProfileList()) == 0:
  File "/usr/lib/python2.5/site-packages/cohoba/common/Utils.py", line 239, in getinstance
    instances[cls] = cls()
  File "/usr/lib/python2.5/site-packages/cohoba/common/ProfileList.py", line 42, in __init__
    self.append(profile(protocol, manager, reg.GetBusName(manager), reg.GetObjectPath(manager), reg.GetParams(manager, protocol)))
  File "/usr/lib/python2.5/site-packages/telepathy/client/managerregistry.py", line 192, in GetParams
    default = dbus.Variant(val.strip(), signature=type)
AttributeError: 'module' object has no attribute 'Variant'