I got the error like this:

[boomchatchat]

I got the error like this:
How to fix it?

[11/18/2021, 11:12:58 PM] [homebridge-xiaomi-mi-air-purifier] This plugin threw an error from the characteristic 'Active': Unhandled error thrown inside read handler for characteristic: device.power is not a function. See https://git.io/JtMGR for more info.
[Removed rest of the log because they don't provide any additional value. - Rifat]

[torifat]

Can you please share your version of homebridge-xiaomi-mi-air-purifier?

[Csehla]

I got the error like this: How to fix it?

[11/18/2021, 11:12:58 PM] [homebridge-xiaomi-mi-air-purifier] This plugin threw an error from the characteristic 'Active': Unhandled error thrown inside read handler for characteristic: device.power is not a function. See https://git.io/JtMGR for more info.
[Removed rest of the log because they don't provide any additional value. - Rifat]

I have the same problem!

[torifat]

@Csehla your issue is similar to #223

[Dane03]

@torifat Thanks for your effort here.
I am constantly getting errors like

20/11/2021, 19:08:09] [homebridge-xiaomi-mi-air-purifier] This plugin threw an error from the characteristic 'Lock Physical Controls': Unhandled error thrown inside read handler for characteristic: Cannot read properties of undefined (reading 'value'). See https://git.io/JtMGR for more info.
[20/11/2021, 19:08:09] [homebridge-xiaomi-mi-air-purifier] This plugin threw an error from the characteristic 'Filter Life Level': Unhandled error thrown inside read handler for characteristic: Cannot read properties of undefined (reading 'value'). See https://git.io/JtMGR for more info.
[20/11/2021, 19:08:09] [homebridge-xiaomi-mi-air-purifier] This plugin threw an error from the characteristic 'Filter Change Indication': Unhandled error thrown inside read handler for characteristic: Cannot read properties of undefined (reading 'value'). See https://git.io/JtMGR for more info.

Version is homebridge-xiaomi-mi-air-purifier v2.0.0
NPM 8.1.4
Node 16.13

Using Xiaomi Air Purifier 2h and Pro H

[guesq]

@torifat Thanks for your effort here. I am constantly getting errors like

20/11/2021, 19:08:09] [homebridge-xiaomi-mi-air-purifier] This plugin threw an error from the characteristic 'Lock Physical Controls': Unhandled error thrown inside read handler for characteristic: Cannot read properties of undefined (reading 'value'). See https://git.io/JtMGR for more info. [20/11/2021, 19:08:09] [homebridge-xiaomi-mi-air-purifier] This plugin threw an error from the characteristic 'Filter Life Level': Unhandled error thrown inside read handler for characteristic: Cannot read properties of undefined (reading 'value'). See https://git.io/JtMGR for more info. [20/11/2021, 19:08:09] [homebridge-xiaomi-mi-air-purifier] This plugin threw an error from the characteristic 'Filter Change Indication': Unhandled error thrown inside read handler for characteristic: Cannot read properties of undefined (reading 'value'). See https://git.io/JtMGR for more info.

Version is homebridge-xiaomi-mi-air-purifier v2.0.0 NPM 8.1.4 Node 16.13

Using Xiaomi Air Purifier 2h and Pro H

Same here.
I find the values of property filter_life and child_lock are undefined.

xiaomi-mi-air-purifier/src/characteristics/air-purifier/filter-life-level.ts

Line 17 in f6c9fb8

return device.property('filter_life').value;

xiaomi-mi-air-purifier/src/characteristics/air-purifier/filter-change-indication.ts

Line 28 in f6c9fb8

return device.property('filter_life').value <= options.filterChangeThreshold

xiaomi-mi-air-purifier/src/characteristics/air-purifier/lock-physical-controls.ts

Line 24 in f6c9fb8

return device.property('child_lock').value

So I comment these lines out for now, then return some determined values and these errors are gone. There might be something wrong with getting these properties values.

[torifat]

@Dane03 @guesq seems like you folks are having a different problem. So I will create a separate issue for this. In the worse case, I can automatically disable filter_life and child_lock for 2H and Pro H.

@guesq did you try to turn them off in settings before commenting out the code?

[guesq]

@Dane03 @guesq seems like you folks are having a different problem. So I will create a separate issue for this. In the worse case, I can automatically disable filter_life and child_lock for 2H and Pro H.

@guesq did you try to turn them off in settings before commenting out the code?

@torifat Thanks for your reply.
I'm using Xiaomi Air Purifier 2H. This is my settings:

I did not turn Child Lock on and only got the errors about Filter Life Level and Filter Change Indication. So I just commented out the lines with filter_life property. I also tested turning on Child Lock and got the errors about Lock Physical Controls.

[torifat]

@guesq Ah! thank you. My bad! It's filter_life and not Air Quality. Also, thanks for confirming that the setting works for Child Lock.

[luluhoc]

#233

made a pull request fixing this bug

[torifat]

Closing this in favour of #229