Traceback (most recent call last):


 "/srv/homeassistant/homeassistant_venv/lib/python3.5/site-packages/homeassistant/components/device_tracker/__init__.py", line 158, in async_setup_platform

platform.get_scanner, hass, {DOMAIN: p_config})


 "/usr/lib/python3.5/asyncio/futures.py", line 380, in __iter__

yield self
# This tells Task to wait for completion.


 "/usr/lib/python3.5/asyncio/tasks.py", line 304, in _wakeup

future.result()


 "/usr/lib/python3.5/asyncio/futures.py", line 293, in result

raise self._exception


 "/usr/lib/python3.5/concurrent/futures/thread.py", line 55, in run

result = self.fn(*self.args, **self.kwargs)


 "/srv/homeassistant/homeassistant_venv/lib/python3.5/site-packages/homeassistant/components/device_tracker/ubus.py", line 42, in get_scanner

scanner = DnsmasqUbusDeviceScanner(config[DOMAIN])


 "/srv/homeassistant/homeassistant_venv/lib/python3.5/site-packages/homeassistant/components/device_tracker/ubus.py", line 141, in __init__

super(DnsmasqUbusDeviceScanner, self).__init__(config)


 "/srv/homeassistant/homeassistant_venv/lib/python3.5/site-packages/homeassistant/components/device_tracker/ubus.py", line 84, in __init__

self.password)


 "/srv/homeassistant/homeassistant_venv/lib/python3.5/site-packages/homeassistant/components/device_tracker/ubus.py", line 226, in _get_session_id

return res["ubus_rpc_session"]
TypeError: 'NoneType' object is not subscriptable

Traceback (most recent call last):


 "uvloop/cbhandles.pyx", line 64, in uvloop.loop.Handle._run


 "/usr/src/app/homeassistant/core.py", line 626, in onetime_listener

self._hass.async_run_job(listener, event)


 "/usr/src/app/homeassistant/core.py", line 333, in async_run_job

target(*args)


 "/usr/src/app/homeassistant/components/person/__init__.py", line 342, in person_start_hass

self.person_updated()


 "/usr/src/app/homeassistant/components/person/__init__.py", line 363, in person_updated

self._update_state()


 "/usr/src/app/homeassistant/components/person/__init__.py", line 374, in _update_state

for entity_id in self._config.get(CONF_DEVICE_TRACKERS, []):
TypeError: 'NoneType' object is not iterable
