[BUG] TypeError: Cannot read properties of null (reading 'info')

[m-bp]

Code to reproduce the issue:

I am unable to reproduce this issue locally but I have the following code:

device.on('unregistered', () => {
  device.disconnectAll()
  device.destroy()
})

Sometimes when one of my users gets disconnected the following error will show up:

TypeError: Cannot read properties of null (reading 'info')

Coming from here.

Seconds after the device has been destroyed.

It makes perfect sense. The promise is started right before being destroyed and by the time it's resolved the object is null.

[charliesantos]

Thanks for submitting @m-bp . After this happens, do you see any issues on future calls? Or this the error benign?

[m-bp]

It's usually just this error and nothing seems to break. I cannot confirm 100%, however, as I cannot reproduce it myself.

[charliesantos]

Thanks @m-bp . I'll close this for now but I'll put it under our radar as we cannot do anything right now. Feel free to follow up if you find any new information.

[m-bp]

@charliesantos I don't see why it wouldn't be possible to add a couple of null checks inside the promises' callbacks to prevent this error from happening?

[charliesantos]

We definitely can @m-bp . I can submit an internal ticket to track this.