Traceback (most recent call last):
  File "/home/orospakr/olpc/sugar-jhbuild/build/bin/sugar-shell", line 46, in ?
    model = ShellModel()
  File "/home/orospakr/olpc/sugar-jhbuild/build/share/sugar/shell/model/ShellModel.py", line 26, in __init__
    PresenceService.start()
  File "/home/orospakr/olpc/sugar-jhbuild/build/lib/python2.4/site-packages/sugar/presence/PresenceService.py", line 237, in start
    ps.start()
  File "/var/lib/python-support/python2.4/dbus/proxies.py", line 25, in __call__
    ret = self._proxy_method (*args, **keywords)
  File "/var/lib/python-support/python2.4/dbus/proxies.py", line 102, in __call__
    reply_message = self._connection.send_with_reply_and_block(message, timeout)
  File "dbus_bindings.pyx", line 455, in dbus_bindings.Connection.send_with_reply_and_block
DBusException: Traceback (most recent call last):
  File "/var/lib/python-support/python2.4/dbus/service.py", line 304, in _message_cb
    retval = candidate_method(self, *args, **keywords)
  File "/home/orospakr/olpc/sugar-jhbuild/build/share/sugar/services/presence/PresenceService.py", line 301, in start
    self._parent.start()
  File "/home/orospakr/olpc/sugar-jhbuild/build/share/sugar/services/presence/PresenceService.py", line 352, in start
    self._new_domain_cb(avahi.IF_UNSPEC, avahi.PROTO_INET, "local")
  File "/home/orospakr/olpc/sugar-jhbuild/build/share/sugar/services/presence/PresenceService.py", line 725, in _new_domain_cb
    raise Exception("Avahi does not appear to be running.  '%s'" % str_exc)
Exception: Avahi does not appear to be running.  'The name org.freedesktop.Avahi was not provided by any .service files'