17-01-21 01:09:04 homeassistant.bootstrap: Error during setup of component zwave
Traceback (most recent call last):
  File "/srv/homeassistant/homeassistant_venv/lib/python3.4/site-packages/openzwave-0.3.1-py3.4.egg/openzwave/option.py", line 75, in __init__
    raise ZWaveException(u"Can't write to device %s : %s" % (device, traceback.format_exception(*sys.exc_info())))
  File "/usr/lib/python3.4/traceback.py", line 181, in format_exception
    return list(_format_exception_iter(etype, value, tb, limit, chain))
  File "/usr/lib/python3.4/traceback.py", line 146, in _format_exception_iter
    for value, tb in values:
  File "/usr/lib/python3.4/traceback.py", line 125, in _iter_chain
    context = exc.__context__
AttributeError: 'NoneType' object has no attribute '__context__'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/srv/homeassistant/homeassistant_venv/lib/python3.4/site-packages/homeassistant/bootstrap.py", line 151, in _async_setup_component
    None, component.setup, hass, config)
  File "/usr/lib/python3.4/asyncio/futures.py", line 388, in __iter__
    yield self  # This tells Task to wait for completion.
  File "/usr/lib/python3.4/asyncio/tasks.py", line 286, in _wakeup
    value = future.result()
  File "/usr/lib/python3.4/asyncio/futures.py", line 277, in result
    raise self._exception
  File "/usr/lib/python3.4/concurrent/futures/thread.py", line 54, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/srv/homeassistant/homeassistant_venv/lib/python3.4/site-packages/homeassistant/components/zwave/__init__.py", line 279, in setup
    CONF_CONFIG_PATH, default_zwave_config_path))
  File "/srv/homeassistant/homeassistant_venv/lib/python3.4/site-packages/openzwave-0.3.1-py3.4.egg/openzwave/option.py", line 81, in __init__
    raise ZWaveException(u"Error when retrieving device %s : %s" % (device, traceback.format_exception(*sys.exc_info())))
openzwave.object.ZWaveException: 'Zwave Generic Exception : Error when retrieving device /dev/ttyAMA0 : [\'Traceback (most recent call last):\\n\', \'  File "/srv/homeassistant/homeassistant_venv/lib/python3.4/site-packages/openzwave-0.3.1-py3.4.egg/openzwave/option.py", line 75, in __init__\\n    raise ZWaveException(u"Can\\\'t write to device %s : %s" % (device, traceback.format_exception(*sys.exc_info())))\\n\', \'  File "/usr/lib/python3.4/traceback.py", line 181, in format_exception\\n    return list(_format_exception_iter(etype, value, tb, limit, chain))\\n\', \'  File "/usr/lib/python3.4/traceback.py", line 146, in _format_exception_iter\\n    for value, tb in values:\\n\', \'  File "/usr/lib/python3.4/traceback.py", line 125, in _iter_chain\\n    context = exc.__context__\\n\', "AttributeError: \'NoneType\' object has no attribute \'__context__\'\\n"]'
17-01-21 01:11:20 netdisco.ssdp: Error fetching description at http://169.254.96.238:49156/nmsDescription.xml