DeviceError code -30001 (Resp Invalid JSON) - Philips Bulb

[mouth4war]

This is a sporadic error I see happening about once in 30 minutes. It seems to be relevant to this library so I'm posting it here.

2018-02-08 16:18:00 ERROR (MainThread) [homeassistant.core] Error executing service <ServiceCall light.turn_on: transition=30.0, color_temp=283, entity_id=['light.guest_bedroom_wall_north']>
Traceback (most recent call last):
File "/srv/homeassistant/lib/python3.6/site-packages/homeassistant/components/light/xiaomi_miio.py", line 194, in _try_command
partial(func, *args, **kwargs))
File "/usr/local/lib/python3.6/asyncio/futures.py", line 332, in iter
yield self # This tells Task to wait for completion.
File "/usr/local/lib/python3.6/asyncio/tasks.py", line 250, in _wakeup
future.result()
File "/usr/local/lib/python3.6/asyncio/futures.py", line 245, in result
raise self._exception
File "/usr/local/lib/python3.6/concurrent/futures/thread.py", line 56, in run
result = self.fn(*self.args, **self.kwargs)
File "/srv/homeassistant/lib/python3.6/site-packages/miio/philips_bulb.py", line 76, in on
return self.send("set_power", ["on"])
File "/srv/homeassistant/lib/python3.6/site-packages/miio/device.py", line 251, in send
raise DeviceError(m.data.value["error"])
miio.device.DeviceError: {'code': -30001, 'message': 'Resp invalid json.'}

[syssi]

Has your philips bulb internet access?

[syssi]

I've seen the error today the first time too while doing load tests (45req/s):

DEBUG:miio.device:192.168.132.37:54321 >>: {'params': ['power', 'bright', 'cct', 'snm', 'dv'], 'method': 'get_prop', 'id': 4274}
DEBUG:miio.device:192.168.132.37:54321 (ts: 1970-01-01 00:36:18, id: 4274) << {'id': 4274, 'error': {'code': -30001, 'message': 'Resp invalid json.'}}
DEBUG:miio.click_common:Exception: {'code': -30001, 'message': 'Resp invalid json.'}
Traceback (most recent call last):

I will try to handle the error properly in future: retry / replay of the failed command.