Platform Philips hue crashes during start-up

I setup Philips hue with the discovery component.

Traceback (most recent call last):
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/helpers/entity_component.py", line 161, in _async_setup_platform
    SLOW_SETUP_MAX_WAIT, loop=self.hass.loop)
  File "/usr/lib/python3.4/asyncio/tasks.py", line 372, in wait_for
    return fut.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/lib/python3.4/site-packages/homeassistant/components/light/hue.py", line 138, in setup_platform
    allow_in_emulated_hue, allow_hue_groups)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/components/light/hue.py", line 258, in setup_bridge
    update_lights()
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/util/__init__.py", line 303, in wrapper
    result = method(*args, **kwargs)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/util/__init__.py", line 303, in wrapper
    result = method(*args, **kwargs)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/components/light/hue.py", line 188, in update_lights
    api_lights = api.get('lights')
AttributeError: 'list' object has no attribute 'get' ```

Has anybody same experiences? Any hints?