17-04-19 19:30:15 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/lib/python3.4/asyncio/tasks.py", line 237, in _step
    result = next(coro)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/core.py", line 1014, in _event_to_service_call
    yield from service_handler.func(service_call)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/components/device_tracker/__init__.py", line 208, in async_see_service
    yield from tracker.async_see(**args)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/components/device_tracker/__init__.py", line 270, in async_see
    dev_id = cv.slug(str(dev_id).lower())
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/helpers/config_validation.py", line 237, in slug
    raise vol.Invalid('invalid slug {} (try {})'.format(value, slg))
voluptuous.error.Invalid: invalid slug refael's iphone  (try refaels_iphone_)
17-04-19 19:30:25 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/lib/python3.4/asyncio/tasks.py", line 233, in _step
    result = coro.throw(exc)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/components/discovery.py", line 112, in scan_devices
    None, _discover, netdisco)
  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/lib/python3.4/site-packages/homeassistant/components/discovery.py", line 137, in _discover
    for service in netdisco.get_info(disc):
  File "/home/homeassistant/.homeassistant/deps/netdisco/discovery.py", line 104, in get_info
    return self.discoverables[dis].get_info()
  File "/home/homeassistant/.homeassistant/deps/netdisco/discoverables/hass_ios.py", line 21, in get_info
    return [self.info_from_entry(entry) for entry in self.get_entries()]
  File "/home/homeassistant/.homeassistant/deps/netdisco/discoverables/hass_ios.py", line 21, in <listcomp>
    return [self.info_from_entry(entry) for entry in self.get_entries()]
  File "/home/homeassistant/.homeassistant/deps/netdisco/discoverables/hass_ios.py", line 17, in info_from_entry
    entry.properties.get(b'bundleIdentifer').decode('utf-8'))
AttributeError: 'NoneType' object has no attribute 'decode'
17-04-19 19:30:27 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/lib/python3.4/asyncio/tasks.py", line 237, in _step
    result = next(coro)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/core.py", line 1014, in _event_to_service_call
    yield from service_handler.func(service_call)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/components/device_tracker/__init__.py", line 208, in async_see_service
    yield from tracker.async_see(**args)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/components/device_tracker/__init__.py", line 270, in async_see
    dev_id = cv.slug(str(dev_id).lower())
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/helpers/config_validation.py", line 237, in slug
    raise vol.Invalid('invalid slug {} (try {})'.format(value, slg))
voluptuous.error.Invalid: invalid slug refael's iphone  (try refaels_iphone_)
17-04-19 19:30:27 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/lib/python3.4/asyncio/tasks.py", line 237, in _step
    result = next(coro)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/core.py", line 1014, in _event_to_service_call
    yield from service_handler.func(service_call)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/components/device_tracker/__init__.py", line 208, in async_see_service
    yield from tracker.async_see(**args)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/components/device_tracker/__init__.py", line 270, in async_see
    dev_id = cv.slug(str(dev_id).lower())
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/helpers/config_validation.py", line 237, in slug
    raise vol.Invalid('invalid slug {} (try {})'.format(value, slg))
voluptuous.error.Invalid: invalid slug refael's iphone  (try refaels_iphone_)
17-04-19 19:30:27 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/lib/python3.4/asyncio/tasks.py", line 237, in _step
    result = next(coro)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/core.py", line 1014, in _event_to_service_call
    yield from service_handler.func(service_call)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/components/device_tracker/__init__.py", line 208, in async_see_service
    yield from tracker.async_see(**args)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/components/device_tracker/__init__.py", line 270, in async_see
    dev_id = cv.slug(str(dev_id).lower())
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/helpers/config_validation.py", line 237, in slug
    raise vol.Invalid('invalid slug {} (try {})'.format(value, slg))
voluptuous.error.Invalid: invalid slug refael's iphone  (try refaels_iphone_)
17-04-19 19:30:28 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/lib/python3.4/asyncio/tasks.py", line 237, in _step
    result = next(coro)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/core.py", line 1014, in _event_to_service_call
    yield from service_handler.func(service_call)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/components/device_tracker/__init__.py", line 208, in async_see_service
    yield from tracker.async_see(**args)
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/components/device_tracker/__init__.py", line 270, in async_see
    dev_id = cv.slug(str(dev_id).lower())
  File "/srv/homeassistant/lib/python3.4/site-packages/homeassistant/helpers/config_validation.py", line 237, in slug
    raise vol.Invalid('invalid slug {} (try {})'.format(value, slg))
voluptuous.error.Invalid: invalid slug refael's iphone  (try refaels_iphone_)