Component not registered

[tom@…]

I've installed and initialised trac. My apache2 (mod-python 3.1.3) points to the correct location. When I call it, I get:

Oops...

Trac detected an internal error:

Component "LoginModule" not registered
Traceback (most recent call last):
  File "/usr/lib/python2.3/site-packages/trac/web/modpython_frontend.py", line 206, in handler
    dispatch_request(mpr.path_info, mpr, env)
  File "/usr/lib/python2.3/site-packages/trac/web/main.py", line 139, in dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.3/site-packages/trac/web/main.py", line 79, in dispatch
    req.authname = self.authenticate(req)
  File "/usr/lib/python2.3/site-packages/trac/web/main.py", line 65, in authenticate
    for authenticator in self.authenticators:
  File "/usr/lib/python2.3/site-packages/trac/core.py", line 160, in __getattr__
    return [self.compmgr[cls] for cls in extensions
  File "/usr/lib/python2.3/site-packages/trac/core.py", line 189, in __getitem__
    raise TracError, 'Component "%s" not registered' % cls.__name__
TracError: Component "LoginModule" not registered

[tom@…]

I've reconfigured to use FastCgi and the error remains, so whatever it is, it isn't mod_python's fault.

System: Debian Sid