Comment 3 for bug 1054736

I don't know if its' related but syncdaemon-exceptions.log contains this (after removing all devices and setting up U1 again):

leon@polly:~$ cat /home/leon/.cache/ubuntuone/log/syncdaemon-exceptions.log
2012-09-23 13:00:43,113 - ubuntuone.SyncDaemon - ERROR - [Failure instance: Traceback: <type 'exceptions.TypeError'>: object.__new__() takes no parameters
/usr/lib/ubuntuone-client/ubuntuone-syncdaemon:272:<module>
/usr/lib/ubuntuone-client/ubuntuone-syncdaemon:105:main
/usr/lib/python2.7/dist-packages/twisted/internet/defer.py:1187:unwindGenerator
--- <exception caught here> ---
/usr/lib/python2.7/dist-packages/twisted/internet/defer.py:1045:_inlineCallbacks
/usr/lib/ubuntuone-client/ubuntuone-syncdaemon:236:async_main
/usr/lib/python2.7/dist-packages/ubuntuone-client/ubuntuone/syncdaemon/main.py:163:__init__
/usr/lib/python2.7/dist-packages/ubuntuone-client/ubuntuone/syncdaemon/main.py:167:start_sync_menu
]
None
2012-09-23 13:00:43,753 - twisted - ERROR - Unhandled error in Deferred:
2012-09-23 13:00:43,771 - twisted - ERROR - Unhandled Error
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 368, in callback
    self._startRunCallbacks(result)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 464, in _startRunCallbacks
    self._runCallbacks()
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 551, in _runCallbacks
    current.result = callback(current.result, *args, **kw)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1101, in gotResult
    _inlineCallbacks(r, g, deferred)
--- <exception caught here> ---
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1045, in _inlineCallbacks
    result = g.send(result)
  File "/usr/lib/python2.7/dist-packages/ubuntuone-client/ubuntuone/syncdaemon/interaction_interfaces.py", line 1266, in connect
    raise NoAccessToken("got empty credentials.")
ubuntuone.syncdaemon.interaction_interfaces.NoAccessToken: got empty credentials.