[olpc@localhost /]$ sugar-activity develop
Traceback (most recent call last):
  File "/usr/bin/sugar-activity", line 43, in ?
    handler = activityfactory.create(sys.argv[1])
  File "/usr/lib/python2.4/site-packages/sugar/activity/activityfactory.py", line 96, in create
    return ActivityCreationHandler(service_name, activity_handle)
  File "/usr/lib/python2.4/site-packages/sugar/activity/activityfactory.py", line 73, in __init__
    proxy_obj = bus.get_object(service_name, bundle.get_object_path(), follow_name_owner_changes=True)
AttributeError: 'NoneType' object has no attribute 'get_object_path'