Syncdaemon is not exposing the "connect" method on windows

When clicking the "connect" button I get this error (on windows)

exceptions.AttributeError: 'IPCRoot' object has no attribute 'connect'
Unhandled error in Deferred:
Traceback (most recent call last):
  File "C:\Python27\lib\site-packages\twisted\internet\defer.py", line 388, in errback
    self._startRunCallbacks(fail)
  File "C:\Python27\lib\site-packages\twisted\internet\defer.py", line 455, in _startRunCallbacks
    self._runCallbacks()
  File "C:\Python27\lib\site-packages\twisted\internet\defer.py", line 542, in _runCallbacks
    current.result = callback(current.result, *args, **kw)
  File "C:\Python27\lib\site-packages\twisted\internet\defer.py", line 1076, in
gotResult
    _inlineCallbacks(r, g, deferred)
--- <exception caught here> ---
  File "C:\Python27\lib\site-packages\twisted\internet\defer.py", line 1018, in
_inlineCallbacks
    result = result.throwExceptionIntoGenerator(g)
  File "C:\Python27\lib\site-packages\twisted\python\failure.py", line 349, in throwExceptionIntoGenerator
    return g.throw(self.type, self.value, self.tb)
  File "C:\Users\ROBERTO\canonical\ubuntuone-control-panel\ubuntuone\controlpanel\backend.py", line 507, in connect_files
    yield sd_client.connect_file_sync()
  File "C:\Python27\lib\site-packages\twisted\internet\defer.py", line 1018, in
_inlineCallbacks
    result = result.throwExceptionIntoGenerator(g)
  File "C:\Python27\lib\site-packages\twisted\python\failure.py", line 349, in throwExceptionIntoGenerator
    return g.throw(self.type, self.value, self.tb)
exceptions.TypeError: exceptions must be classes, or instances, not str