Exception while calling fromZigbee converter: 'energy_calibration' is not a number, got string ()}

[Nardol]

What happened?

Since version 1.32.0 I have errors about "Exception while calling fromZigbee converter: 'energy_calibration' is not a number, got string ()}"

What did you expect to happen?

I did not have these error before

How to reproduce it (minimal and precise)

I did not something else than starting Zigbee2MQTT after I updated it.

Zigbee2MQTT version

1.32.0

Adapter firmware version

20230507

Adapter

Sonoff dongle 2652P not ezsp

Debug log

debug 01/07/2023 14:48:51: Received Zigbee message from 'prise_entree', type 'attributeReport', cluster 'genBasic', data '{"65506":54,"65508":0,"appVersion":192}' from endpoint 1 with groupID 0 debug 01/07/2023 14:49:04: Received Zigbee message from 'prise_meuble_bureau', type 'attributeReport', cluster 'genBasic', data '{"65506":54,"65508":0,"appVersion":192}' from endpoint 1 with groupID 0 debug 01/07/2023 14:49:37: Received Zigbee message from 'prise_meuble_bureau', type 'readResponse', cluster 'seMetering', data '{"currentSummDelivered":[0,1]}' from endpoint 1 with groupID 0 info 01/07/2023 14:49:37: MQTT publish: topic 'zigbee2mqtt/prise_meuble_bureau', payload '{"child_lock":"UNLOCK","current":0,"elapsed":60079,"energy":0.01,"indicator_mode":"off/on","last_seen":"2023-05-21T16:39:03+02:00","linkquality":58,"power":0,"power_outage_memory":"restore","state":"ON","update":{"installed_version":192,"latest_version":192,"state":"idle"},"update_available":null,"voltage":240}' debug 01/07/2023 14:49:37: Received Zigbee message from 'prise_entree', type 'readResponse', cluster 'seMetering', data '{"currentSummDelivered":[0,39]}' from endpoint 1 with groupID 0 error 01/07/2023 14:49:37: Exception while calling fromZigbee converter: 'energy_calibration' is not a number, got string ()} debug 01/07/2023 14:49:37: Error: 'energy_calibration' is not a number, got string () at assertNumber (/opt/zigbee2mqtt/node_modules/zigbee-herdsman-converters/src/lib/utils.ts:502:42) at calibrateAndPrecisionRoundOptions (/opt/zigbee2mqtt/node_modules/zigbee-herdsman-converters/src/lib/utils.ts:90:5) at Object.convert (/opt/zigbee2mqtt/node_modules/zigbee-herdsman-converters/src/converters/fromZigbee.js:768:34) at Receive.onDeviceMessage (/opt/zigbee2mqtt/lib/extension/receive.ts:150:51) at EventEmitter.emit (node:events:525:35) at EventBus.emitDeviceMessage (/opt/zigbee2mqtt/lib/eventBus.ts:102:22) at Controller. (/opt/zigbee2mqtt/lib/zigbee.ts:106:27) at Controller.emit (node:events:513:28) at Controller.selfAndDeviceEmit (/opt/zigbee2mqtt/node_modules/zigbee-herdsman/src/controller/controller.ts:515:14) at Controller.onZclOrRawData (/opt/zigbee2mqtt/node_modules/zigbee-herdsman/src/controller/controller.ts:726:18) debug 01/07/2023 14:49:37: Received Zigbee message from 'Prise Salle de Bain', type 'readResponse', cluster 'haElectricalMeasurement', data '{"activePower":1,"rmsCurrent":12,"rmsVoltage":238}' from endpoint 1 with groupID 0 info 01/07/2023 14:49:37: MQTT publish: topic 'zigbee2mqtt/Prise Salle de Bain', payload '{"current":0.01,"elapsed":60086,"energy":30.27,"indicator_mode":"off/on","last_seen":"2023-05-21T16:38:27+02:00","linkquality":80,"power":1,"power_outage_memory":"restore","state":"ON","voltage":238}' debug 01/07/2023 14:49:38: Received Zigbee message from 'Prise Masque Ingrid', type 'attributeReport', cluster 'genBasic', data '{"65506":30,"appVersion":66}' from endpoint 1 with groupID 0 debug 01/07/2023 14:49:46: Received Zigbee message from 'Prise Salle de Bain', type 'attributeReport', cluster 'seMetering', data '{"currentSummDelivered":[0,3027]}' from endpoint 1 with groupID 0 info 01/07/2023 14:49:46: MQTT publish: topic 'zigbee2mqtt/Prise Salle de Bain', payload '{"current":0.01,"elapsed":8026,"energy":30.27,"indicator_mode":"off/on","last_seen":"2023-05-21T16:38:27+02:00","linkquality":76,"power":1,"power_outage_memory":"restore","state":"ON","voltage":238}' debug 01/07/2023 14:50:05: Received Zigbee message from 'prise_entree', type 'read', cluster 'genTime', data '["localTime"]' from endpoint 1 with groupID 0 debug 01/07/2023 14:50:12: Received Zigbee message from 'prise_entree', type 'attributeReport', cluster 'haElectricalMeasurement', data '{"activePower":0,"rmsCurrent":0,"rmsVoltage":237}' from endpoint 1 with groupID 0 error 01/07/2023 14:50:12: Exception while calling fromZigbee converter: 'power_calibration' is not a number, got string ()} debug 01/07/2023 14:50:12: Error: 'power_calibration' is not a number, got string () at assertNumber (/opt/zigbee2mqtt/node_modules/zigbee-herdsman-converters/src/lib/utils.ts:502:42) at calibrateAndPrecisionRoundOptions (/opt/zigbee2mqtt/node_modules/zigbee-herdsman-converters/src/lib/utils.ts:90:5) at Object.convert (/opt/zigbee2mqtt/node_modules/zigbee-herdsman-converters/src/converters/fromZigbee.js:830:41) at Receive.onDeviceMessage (/opt/zigbee2mqtt/lib/extension/receive.ts:150:51) at EventEmitter.emit (node:events:525:35) at EventBus.emitDeviceMessage (/opt/zigbee2mqtt/lib/eventBus.ts:102:22) at Controller. (/opt/zigbee2mqtt/lib/zigbee.ts:106:27) at Controller.emit (node:events:513:28) at Controller.selfAndDeviceEmit (/opt/zigbee2mqtt/node_modules/zigbee-herdsman/src/controller/controller.ts:515:14) at Controller.onZclOrRawData (/opt/zigbee2mqtt/node_modules/zigbee-herdsman/src/controller/controller.ts:726:18) debug 01/07/2023 14:50:12: Received Zigbee message from 'prise_entree', type 'attributeReport', cluster 'seMetering', data '{"currentSummDelivered":[0,39]}' from endpoint 1 with groupID 0 error 01/07/2023 14:50:12: Exception while calling fromZigbee converter: 'energy_calibration' is not a number, got string ()} debug 01/07/2023 14:50:12: Error: 'energy_calibration' is not a number, got string () at assertNumber (/opt/zigbee2mqtt/node_modules/zigbee-herdsman-converters/src/lib/utils.ts:502:42) at calibrateAndPrecisionRoundOptions (/opt/zigbee2mqtt/node_modules/zigbee-herdsman-converters/src/lib/utils.ts:90:5) at Object.convert (/opt/zigbee2mqtt/node_modules/zigbee-herdsman-converters/src/converters/fromZigbee.js:768:34) at Receive.onDeviceMessage (/opt/zigbee2mqtt/lib/extension/receive.ts:150:51) at EventEmitter.emit (node:events:525:35) at EventBus.emitDeviceMessage (/opt/zigbee2mqtt/lib/eventBus.ts:102:22) at Controller. (/opt/zigbee2mqtt/lib/zigbee.ts:106:27) at Controller.emit (node:events:513:28) at Controller.selfAndDeviceEmit (/opt/zigbee2mqtt/node_modules/zigbee-herdsman/src/controller/controller.ts:515:14) at Controller.onZclOrRawData (/opt/zigbee2mqtt/node_modules/zigbee-herdsman/src/controller/controller.ts:726:18) debug 01/07/2023 14:50:35: Saving state to file /home/homeassistant/config/zigbee2mqtt/state.json debug 01/07/2023 14:50:37: Received Zigbee message from 'Prise Bureau', type 'readResponse', cluster 'genBasic', data '{"zclVersion":3}' from endpoint 1 with groupID 0 debug 01/07/2023 14:50:37: Successfully pinged 'Prise Bureau' (attempt 1/2) debug 01/07/2023 14:50:37: Received Zigbee message from 'prise_meuble_bureau', type 'readResponse', cluster 'seMetering', data '{"currentSummDelivered":[0,1]}' from endpoint 1 with groupID 0 info 01/07/2023 14:50:38: MQTT publish: topic 'zigbee2mqtt/prise_meuble_bureau', payload '{"child_lock":"UNLOCK","current":0,"elapsed":60108,"energy":0.01,"indicator_mode":"off/on","last_seen":"2023-05-21T16:39:03+02:00","linkquality":51,"power":0,"power_outage_memory":"restore","state":"ON","update":{"installed_version":192,"latest_version":192,"state":"idle"},"update_available":null,"voltage":240}' debug 01/07/2023 14:50:38: Received Zigbee message from 'prise_entree', type 'readResponse', cluster 'seMetering', data '{"currentSummDelivered":[0,39]}' from endpoint 1 with groupID 0 error 01/07/2023 14:50:38: Exception while calling fromZigbee converter: 'energy_calibration' is not a number, got string ()} debug 01/07/2023 14:50:38: Error: 'energy_calibration' is not a number, got string () at assertNumber (/opt/zigbee2mqtt/node_modules/zigbee-herdsman-converters/src/lib/utils.ts:502:42) at calibrateAndPrecisionRoundOptions (/opt/zigbee2mqtt/node_modules/zigbee-herdsman-converters/src/lib/utils.ts:90:5) at Object.convert (/opt/zigbee2mqtt/node_modules/zigbee-herdsman-converters/src/converters/fromZigbee.js:768:34) at Receive.onDeviceMessage (/opt/zigbee2mqtt/lib/extension/receive.ts:150:51) at EventEmitter.emit (node:events:525:35) at EventBus.emitDeviceMessage (/opt/zigbee2mqtt/lib/eventBus.ts:102:22) at Controller. (/opt/zigbee2mqtt/lib/zigbee.ts:106:27) at Controller.emit (node:events:513:28) at Controller.selfAndDeviceEmit (/opt/zigbee2mqtt/node_modules/zigbee-herdsman/src/controller/controller.ts:515:14) at Controller.onZclOrRawData (/opt/zigbee2mqtt/node_modules/zigbee-herdsman/src/controller/controller.ts:726:18) debug 01/07/2023 14:50:38: Received Zigbee message from 'Prise Salle de Bain', type 'readResponse', cluster 'haElectricalMeasurement', data '{"activePower":1,"rmsCurrent":12,"rmsVoltage":238}' from endpoint 1 with groupID 0 info 01/07/2023 14:50:38: MQTT publish: topic 'zigbee2mqtt/Prise Salle de Bain', payload '{"current":0.01,"elapsed":52123,"energy":30.27,"indicator_mode":"off/on","last_seen":"2023-05-21T16:38:27+02:00","linkquality":80,"power":1,"power_outage_memory":"restore","state":"ON","voltage":238}' debug 01/07/2023 14:50:40: Received Zigbee message from 'Prise Chambre d'Amis', type 'readResponse', cluster 'genBasic', data '{"zclVersion":3}' from endpoint 1 with groupID 0 debug 01/07/2023 14:50:40: Successfully pinged 'Prise Chambre d'Amis' (attempt 1/2) debug 01/07/2023 14:50:42: Received Zigbee message from 'Spot Canapé', type 'readResponse', cluster 'genBasic', data '{"zclVersion":8}' from endpoint 11 with groupID 0 debug 01/07/2023 14:50:42: Successfully pinged 'Spot Canapé' (attempt 1/2) debug 01/07/2023 14:51:00: Received Zigbee message from 'prise_meuble_bureau', type 'attributeReport', cluster 'haElectricalMeasurement', data '{"activePower":0,"rmsCurrent":0,"rmsVoltage":239}' from endpoint 1 with groupID 0 info 01/07/2023 14:51:00: MQTT publish: topic 'zigbee2mqtt/prise_meuble_bureau', payload '{"child_lock":"UNLOCK","current":0,"elapsed":22245,"energy":0.01,"indicator_mode":"off/on","last_seen":"2023-05-21T16:39:03+02:00","linkquality":43,"power":0,"power_outage_memory":"restore","state":"ON","update":{"installed_version":192,"latest_version":192,"state":"idle"},"update_available":null,"voltage":239}' debug 01/07/2023 14:51:00: Received Zigbee message from 'prise_meuble_bureau', type 'attributeReport', cluster 'seMetering', data '{"currentSummDelivered":[0,1]}' from endpoint 1 with groupID 0 info 01/07/2023 14:51:00: MQTT publish: topic 'zigbee2mqtt/prise_meuble_bureau', payload '{"child_lock":"UNLOCK","current":0,"elapsed":84,"energy":0.01,"indicator_mode":"off/on","last_seen":"2023-05-21T16:39:03+02:00","linkquality":54,"power":0,"power_outage_memory":"restore","state":"ON","update":{"installed_version":192,"latest_version":192,"state":"idle"},"update_available":null,"voltage":239}'

[keithskillicorn]

I also have the same issue, after upgrading. Every message from Develco Electricity meter is creating an error:

Error 2023-07-01 15:26:58Exception while calling fromZigbee converter: 'power_calibration' is not a number, got string ()} Debug 2023-07-01 15:26:58Error: 'power_calibration' is not a number, got string () at assertNumber (/app/node_modules/zigbee-herdsman-converters/src/lib/utils.ts:502:42) at calibrateAndPrecisionRoundOptions (/app/node_modules/zigbee-herdsman-converters/src/lib/utils.ts:90:5) at Object.convert (/app/node_modules/zigbee-herdsman-converters/src/converters/fromZigbee.js:752:33) at Object.convert (/app/node_modules/zigbee-herdsman-converters/src/devices/develco.ts:83:40) at Receive.onDeviceMessage (/app/lib/extension/receive.ts:150:51) at EventEmitter.emit (node:events:525:35) at EventBus.emitDeviceMessage (/app/lib/eventBus.ts:102:22) at Controller. (/app/lib/zigbee.ts:106:27) at Controller.emit (node:events:513:28) at Controller.selfAndDeviceEmit (/app/node_modules/zigbee-herdsman/src/controller/controller.ts:515:14) Info 2023-07-01 15:26:58MQTT publish: topic 'zigbee2mqtt/Develco Electricity Meter', payload '{"battery_low":false,"check_meter":false,"current_summation":0,"energy":1202.191,"interface_mode":"electricity","linkquality":72,"power":309,"pulse_configuration":1000}'

[zzz676]

In the same way, it constantly writes such an error.

Zigbee2MQTT:error 2023-07-01 19:15:08: Exception while calling fromZigbee converter: 'power_calibration' is not a number, got string ()} Zigbee2MQTT:error 2023-07-01 19:15:38: Exception while calling fromZigbee converter: 'power_calibration' is not a number, got string ()}

[Coldness00]

I had to downgrade, as I had same issue to control my IKEA ICPSHC24-10EU-IL-1.

[zzz676]

I had to downgrade, as I had same issue to control my IKEA ICPSHC24-10EU-IL-1.

How did you downgrade?

[hellcry37]

same for me, the problem is i can not downgrade so easily since is not a docker container

[Emilef22]

same here

[alray31]

Same:

[lior532]

i have the same issue i like to find a solution for this

[Koenkk]

Make sure in your zigbee2mqtt configuration that e.g. energy_calibration is a number not string.

[zzz676]

Make sure in your zigbee2mqtt configuration that e.g. energy_calibration is a number not string.

I have a repeated error about power_calibration. The error appeared immediately after updating to 1.32, there were no errors on the previous version. no new devices connected.

[zzz676]

[NecoPastor]

I got rid of the error by removing the power_calibration: '' line from the zigbee2mqtt config

[JackTalisker]

I had the same error with a smartplug.

I choose a 0 for the field of _powercalibration in the device "Settings (specific)" page and the error seems to be gone

[Nardol]

Thanks, I also had a power_calibration: '' line in my config, error is gone after removing it. I also remove all other lines I found with value '' to be sure, for other devices I did not have these and now all looks good.

I don't know why I did not have this error before but it is now fixed.

[alray31]

Make sure in your zigbee2mqtt configuration that e.g. energy_calibration is a number not string.

I just realized that if you go to the device setting (specific) page of z2m and touch a field when scrolling with a touch screen i.e power_calibration, Z2m will add automatically a line on your configuration. yaml with no value:

yaml before

Scrolling and touching the power_calibtation field by mistake:

Result:

Is there a way to avoid that apart from not using a touchscreen?

[Nardol]

Maybe in fact this issue should be opened against ZB2MQTT frontend?

[hellcry37]

I found the issue, had in my device config some temperature_calibration: '' so basically a null or empty string, after removing them all it was OK.

The problem is, I did not put them there, it was the UI who did when i saved some confs for that sensor. Since i did not put anything there, UI decided to put temperature_calibration: ''

[vadne]

I have the same trouble... While I'm waiting for the fix, I rolled back to the old version.

[zekje]

Solved for my by remplacing power_precision: ' ' by power_precision: 0 in /config/zigbee2mqtt/devices.yaml (and reload z2m )

[alray31]

Maybe in fact this issue should be opened against ZB2MQTT frontend?

Done https://github.com/nurikk/zigbee2mqtt-frontend/issues/1750

[zzz676]

I got rid of the error by removing the power_calibration: '' line from the zigbee2mqtt config

Thanks. Removed this line, now there are no more errors.

[Gybrsh]

Make sure in your zigbee2mqtt configuration that e.g. energy_calibration is a number not string.

This did the trick. I had a space in one of my smartplugs power_calibration, replaced it with a 0 (zero).

[Coldness00]

Hello, As I run this from Docker, I just reinstall the DOcker with the specific ver: koenkk/zigbee2mqtt:1.31.2

Worked well

[Nardol]

So I close this issue which is more related to the frontend, thanks @alray31 for opening nurikk/zigbee2mqtt-frontend#1750

[Koenkk]

Pushed a fix!

Changes will be available in the dev branch in a few hours from now. (https://www.zigbee2mqtt.io/advanced/more/switch-to-dev-branch.html)

[Kepro]

hey @Koenkk I have HA with z2m -> 1.32.1-1 which should have Updated Zigbee2MQTT to version [1.32.1] which should be included in 1.32.1 release but issue still persist

[Koenkk]

Can you provide the debug log with 1.32.1?

[Kepro]

here

Zigbee2MQTT:debug 2023-07-08 18:24:22: Received Zigbee message from 'Air Quality', type 'commandDataReport', cluster 'manuSpecificTuya', data '{"dpValues":[{"data":{"data":[0,0,0,242],"type":"Buffer"},"datatype":2,"dp":18}],"seq":0}' from endpoint 1 with groupID 0
Zigbee2MQTT:error 2023-07-08 18:24:22: Exception while calling fromZigbee converter: 'temperature_calibration' is not a number, got string ()}
Zigbee2MQTT:debug 2023-07-08 18:24:22: Error: 'temperature_calibration' is not a number, got string ()
    at toNumber (/app/node_modules/zigbee-herdsman-converters/src/lib/utils.ts:509:15)
    at Object.calibrateAndPrecisionRoundOptions (/app/node_modules/zigbee-herdsman-converters/src/lib/utils.ts:89:29)
    at Object.convert (/app/node_modules/zigbee-herdsman-converters/src/lib/legacy.ts:3981:44)
    at Receive.onDeviceMessage (/app/lib/extension/receive.ts:150:51)
    at EventEmitter.emit (node:events:525:35)
    at EventBus.emitDeviceMessage (/app/lib/eventBus.ts:102:22)
    at Controller.<anonymous> (/app/lib/zigbee.ts:106:27)
    at Controller.emit (node:events:513:28)
    at Controller.selfAndDeviceEmit (/app/node_modules/zigbee-herdsman/src/controller/controller.ts:515:14)
    at Controller.onZclOrRawData (/app/node_modules/zigbee-herdsman/src/controller/controller.ts:726:18)
Zigbee2MQTT:info  2023-07-08 18:24:22: MQTT publish: topic 'zigbee2mqtt/Air Quality', payload '{"co2":362,"formaldehyd":2,"humidity":56.2,"last_seen":"2023-07-08T16:24:22.106Z","linkquality":153,"temperature":24,"voc":1}'
Zigbee2MQTT:debug 2023-07-08 18:24:22: Received Zigbee message from 'Air Quality', type 'commandDataReport', cluster 'manuSpecificTuya', data '{"dpValues":[{"data":{"data":[0,0,2,46],"type":"Buffer"},"datatype":2,"dp":19}],"seq":0}' from endpoint 1 with groupID 0

okay, looks like this device had temperature_calibration: '' for some reason in YAML :-X Please close the issue it's fixed when I removed it

[Koenkk]

'' is indeed not a valid number so the error is correct.

[kam821]

'' is indeed not a valid number so the error is correct.

@Koenkk All you need is click on the value field (of e.g. power_calibration) in Firefox to make the entry: '' reappear in YAML configuration file. This issue is still present in latest and latest-dev branches, latest usable version is 1.31.2, which also generates this entry, but doesn't panic about it.

[Kepro]

this is most likely an issue with the Frotnend part/package not this package... which has more issues with inputs and numbers...

[Koenkk]

Please create an issue in the frontend repo: https://github.com/nurikk/zigbee2mqtt-frontend

[Nardol]

Except if there is now something different, nurikk/zigbee2mqtt-frontend#1750 is still opened.

[popy2k14]

Similar log entries here. I did not changed any device in my network and did not had such messages. Here is an log entry:

Debug 2023-08-04 15:38:24Error: 'illuminance_calibration' is not a number, got string () at toNumber (/app/node_modules/zigbee-herdsman-converters/src/lib/utils.ts:509:15) at calibrateAndPrecisionRoundOptions (/app/node_modules/zigbee-herdsman-converters/src/lib/utils.ts:89:29) at Object.convert (/app/node_modules/zigbee-herdsman-converters/src/converters/fromZigbee.js:4052:35) at Receive.onDeviceMessage (/app/lib/extension/receive.ts:150:51) at EventEmitter.emit (node:events:525:35) at EventBus.emitDeviceMessage (/app/lib/eventBus.ts:102:22) at Controller.<anonymous> (/app/lib/zigbee.ts:107:27) at Controller.emit (node:events:513:28) at Controller.selfAndDeviceEmit (/app/node_modules/zigbee-herdsman/src/controller/controller.ts:515:14) at Controller.onZclOrRawData (/app/node_modules/zigbee-herdsman/src/controller/controller.ts:726:18)

[Kepro]

@popy2k14 did you check your configuration.yaml?

[popy2k14]

@Kepro thx for the hint. In my configuration.yaml was illuminance_calibration: '' for one device. Removed it, restarted Z2M and issue is gone. Dont know why this value was in there.

Anyway, it's solved now. thx a lot

[pkasarda]

@popy2k14 so same as I wrote above, it is an issue with frontend, adding empty string to config.. issue https://github.com/nurikk/zigbee2mqtt-frontend/issues/1750

btw if you read a couple of messages above you will find out what to do :-P

[popy2k14]

Thx for the hint.

Those who can read have a clear advantage 😉😂

[github-actions[bot]]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 7 days

[xelemorf]

I had the same with voltage_calibration: '' Did a find/replace for it and seems to be resolved.

Find: voltage_calibration: ''
Replace: voltage_calibration: '0'

Need to do the same with all powered devices apparently.

[AndKe]

updated docker gave me "1.33.2 commit: 9996c93" - and I still see this issue?

[AndKe]

still the same issue with 1.35.1 commit: 9eaaa0f "Failed to apply calibration to 'pressure': 'pressure_calibration' is not a number, got string ()"

is this going to get fixed?

[Kepro]

@AndKe you didn't even try to read the whole issue, right? ad 1 remove pressure_calibration from yaml manually, ad 2, it is or it was issue with frontend not with core package

[AndKe]

@Kepro thanks, no the issue consists of lots of posts, and none contains a described workaround. I understood that there is a file in one of the docker volumes, named configuration.yaml So far, I can only guess that I am looking for something like: pressure_calibration : '' which should be corrected to pressure_calibration :

• and I still hoped for the frontend or core, to handle such invalid setting from a previous build, simply correcting it on load .

[hellcry37]

@Kepro thanks, no the issue consists of lots of posts, and none contains a described workaround. I understood that there is a file in one of the docker volumes, named configuration.yaml So far, I can only guess that I am looking for something like: pressure_calibration : '' which should be corrected to pressure_calibration :

* and I still hoped for the frontend or core, to handle such invalid setting from a previous build, simply correcting it on load .

no man just remove in configuration.yaml or devices.yaml or what you have it set to, entire line.

for example I have this device:

'0x00xxxxxxxxxxxxx8':
  friendly_name: Master Bedroom Motion
  temperature_calibration: 2
  temperature_precision: 1

now if is set like this will error out:

'0x00xxxxxxxxxxxxx8':
  friendly_name: Master Bedroom Motion
  temperature_calibration: 2
  temperature_precision: ''

because temperature_precision is NULL

Observe how values between quotes are strings and no quotes are usually numbers (this is not mandatory) depends on the programming language but usually is like this. - hope this addresses comments about strings and stuff!

For this error to be gone remove the hole line that contains the null string in this case: temperature_precision: ''

Restart zigbee2mqtt

note: I had exactly this explained half a year ago, others did to (on Jul 2, 2023) read the thread please

[AndKe]

Thank you, fixed it after locating the file in docker. - I hoped this was automatically handled in newer releases.