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Failed to connect to Mi Kettle-TypeError: Cannot read property 'StartNotify' of undefined

See original GitHub issue

Hi everyone,

I follow the readme to install the package. I’ve cloned the repo, done npm install, configured cybele as follows

{
  "mqtt": {
    "url": "MQTT"
  },
  "dongles": [
    {
      "hciDevice": "hci0",
      "mode": "le",
      "services": [],
      "devices": [{
  "type": "MiKettleDevice",
  "friendlyName": "Mi Kettle",
  "mac": "MAC",
  "productId":1116
}

      ]
    }
  ]
}

Connected to MQTT Broker
Startup complete
/home/pi/Cybele/lib/devices/MiKettle/MiKettleDevice.js:166
        this.characteristicsByUUID[MiKettleDevice.CHARACTERISTICS.auth].StartNotify([], err => {
                                                                        ^

TypeError: Cannot read property 'StartNotify' of undefined
    at /home/pi/Cybele/lib/devices/MiKettle/MiKettleDevice.js:166:73
    at Object.item.task (/home/pi/Cybele/node_modules/semaphore/lib/semaphore.js:40:29)
    at Object.take (/home/pi/Cybele/node_modules/semaphore/lib/semaphore.js:51:9)
    at MiKettleDevice.doAuthStageTwo (/home/pi/Cybele/lib/devices/MiKettle/MiKettleDevice.js:165:20)
    at Object.<anonymous> (/home/pi/Cybele/lib/devices/MiKettle/MiKettleDevice.js:156:22)
    at EventEmitter.<anonymous> (/home/pi/Cybele/node_modules/dbus-native/lib/bus.js:138:19)
    at EventEmitter.emit (events.js:388:22)
    at /home/pi/Cybele/node_modules/dbus-native/index.js:106:14
    at Socket.<anonymous> (/home/pi/Cybele/node_modules/dbus-native/lib/message.js:55:9)
    at Socket.emit (events.js:376:20)

Any ideas what’s wrong?