bzr crashed with Autolaunch error in __new__()

[Omid Mottaghi]

Binary package hint: bzr

n/a

ProblemType: Crash
Architecture: i386
DistroRelease: Ubuntu 8.10
ExecutablePath: /usr/bin/bzr
InterpreterPath: /usr/bin/python2.5
Package: bzr 1.6-1
ProcCmdline: /usr/bin/python /usr/bin/bzr serve --allow-writes --directory=/srv/repo/ -v
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/sh
PythonArgs: ['/usr/bin/bzr', 'serve', '--allow-writes', '--directory=/srv/repo/', '-v']
SourcePackage: bzr
Title: bzr crashed with Autolaunch error in __new__()
Uname: Linux 2.6.27-3-server i686
UserGroups:

Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/dbus/server_mainloop.py", line 74, in idle
    retval.append(func(*args, **kwargs))
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/dbus/server_mainloop.py", line 120, in call_hooks
    hook(backing_urls, public_url)
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/dbus/hook.py", line 60, in on_server_start
    get_announcer().on_server_started(backing_urls, public_url)
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/dbus/hook.py", line 54, in get_announcer
    _announcer = activity.ServerAnnouncer()
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/dbus/activity.py", line 261, in __init__
    self.bus = _get_bus(bus)
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/dbus/activity.py", line 49, in _get_bus
    return dbus.SessionBus()
  File "/var/lib/python-support/python2.5/dbus/_dbus.py", line 217, in __new__
    mainloop=mainloop)
  File "/var/lib/python-support/python2.5/dbus/_dbus.py", line 106, in __new__
    bus = BusConnection.__new__(subclass, bus_type, mainloop=mainloop)
  File "/var/lib/python-support/python2.5/dbus/bus.py", line 125, in __new__
    bus = cls._new_for_bus(address_or_type, mainloop=mainloop)
DBusException: org.freedesktop.DBus.Error.Spawn.ExecFailed: dbus-launch failed to autolaunch D-Bus session: No protocol specified
Autolaunch error: X11 initialization failed.