Traceback (most recent call last):


 "numba_crash.py", line 23, in <module>

c3 = combine(c1, c2, c1)


 "~/miniconda3/envs/idp/lib/python3.7/site-packages/numba/core/dispatcher.py", line 401, in _compile_for_args

error_rewrite(e, 'typing')


 "~/miniconda3/envs/idp/lib/python3.7/site-packages/numba/core/dispatcher.py", line 344, in error_rewrite

reraise(type(e), e, None)


 ~/miniconda3/envs/idp/lib/python3.7/site-packages/numba/core/utils.py", line 80, in reraise

raise value.with_traceback(tb)
numba.core.errors.TypingError: Failed in nopython mode pipeline (step: nopython frontend)

Traceback (most recent call last):


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

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


 "/srv/homeassistant/lib/python3.5/site-packages/homeassistant/components/device_tracker/bluetooth_le_tracker.py", line 96, in update_ble

devs = discover_ble_devices()


 "/srv/homeassistant/lib/python3.5/site-packages/homeassistant/components/device_tracker/bluetooth_le_tracker.py", line 58, in discover_ble_devices

devs = adapter.scan()


 "/srv/homeassistant/lib/python3.5/site-packages/pygatt/backends/gatttool/gatttool.py", line 326, in scan

raise BLEError(message)
pygatt.exceptions.BLEError: Unexpected error when scanning: LE Scan ...
