MQTT add on (mosquitto) reports the problem with the device class for the number component, complaining there is no device class assigned.
However, according to the MQTT documentation on HA, device class is optional:
device_class [device_class](https://www.home-assistant.io/docs/configuration/customizing-devices/#device-class) (optional, default: None)
The error from HA:
2022-12-11 21:47:01.588 ERROR (MainThread) [homeassistant.util.logging] Exception in async_discover when dispatching 'mqtt_discovery_new_number_mqtt': ({'name': 'esp32092_sleep', 'state_topic': 'esp32092/sleep/state', 'command_topic': 'esp32092/sleep/cmd', 'min': 1, 'max': 9999, 'unit_of_measurement': 's', 'qos': '2', 'retain': 'true', 'device_class': 'number', 'unique_id': 'esp32092_sleep', 'entity_category': 'config', 'value_template': '{{value_json.sleeptime}}', 'expire_after': 110, 'force_update': 'true', 'device': {'identifiers': '98:CD:AC:BF:B7:78', 'name': 'ESP32S_esp32092_test', 'model': 'ESP32S', 'manufacturer': 'ZH', 'sw_version': 'ESP32S,72.6.1, 7.29.1, May 26 2022 22:52:14'}, 'platform': 'mqtt'},)
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/components/mqtt/mixins.py", line 328, in async_discover
config: DiscoveryInfoType = discovery_schema(discovery_payload)
File "/usr/local/lib/python3.10/site-packages/voluptuous/validators.py", line 232, in __call__
return self._exec((Schema(val) for val in self.validators), v)
File "/usr/local/lib/python3.10/site-packages/voluptuous/validators.py", line 355, in _exec
raise e if self.msg is None else AllInvalid(self.msg, path=path)
File "/usr/local/lib/python3.10/site-packages/voluptuous/validators.py", line 351, in _exec
v = func(v)
File "/usr/local/lib/python3.10/site-packages/voluptuous/schema_builder.py", line 272, in __call__
return self._compiled([], data)
File "/usr/local/lib/python3.10/site-packages/voluptuous/schema_builder.py", line 818, in validate_callable
return schema(data)
File "/usr/local/lib/python3.10/site-packages/voluptuous/schema_builder.py", line 272, in __call__
return self._compiled([], data)
File "/usr/local/lib/python3.10/site-packages/voluptuous/schema_builder.py", line 595, in validate_dict
return base_validate(path, iteritems(data), out)
File "/usr/local/lib/python3.10/site-packages/voluptuous/schema_builder.py", line 433, in validate_mapping
raise er.MultipleInvalid(errors)
voluptuous.error.MultipleInvalid: expected NumberDeviceClass or one of 'apparent_power', 'aqi', 'battery', 'carbon_monoxide', 'carbon_dioxide', 'current', 'distance', 'energy', 'frequency', 'gas', 'humidity', 'illuminance', 'moisture', 'monetary', 'nitrogen_dioxide', 'nitrogen_monoxide', 'nitrous_oxide', 'ozone', 'pm1', 'pm10', 'pm25', 'power_factor', 'power', 'precipitation', 'precipitation_intensity', 'pressure', 'reactive_power', 'signal_strength', 'speed', 'sulphur_dioxide', 'temperature', 'volatile_organic_compounds', 'voltage', 'volume', 'water', 'weight', 'wind_speed' for dictionary value @ data['device_class']
What version of Home Assistant Core has the issue?
2022.12.1
What was the last working version of Home Assistant Core?
The problem
MQTT add on (mosquitto) reports the problem with the device class for the number component, complaining there is no device class assigned. However, according to the MQTT documentation on HA, device class is optional:
device_class [device_class](https://www.home-assistant.io/docs/configuration/customizing-devices/#device-class) (optional, default: None)
The error from HA:
What version of Home Assistant Core has the issue?
2022.12.1
What was the last working version of Home Assistant Core?
No response
What type of installation are you running?
Home Assistant OS
Integration causing the issue
MQTT
Link to integration documentation on our website
No response
Diagnostics information
see above
Example YAML snippet
No response
Anything in the logs that might be useful for us?
No response
Additional information
No response