Property 'onLocation' does not exist on type 'AppComponent'.

[MuhammadTahir92]

i am using in nativescript angular project and all event listeners show's this error

this is my code in app.component.ts
` private _state: any;

constructor() {

// 1. Listen to events
BackgroundGeolocation.on("location", this.onLocation.bind(this));
BackgroundGeolocation.on("motionchange", this.onMotionChange.bind(this));
BackgroundGeolocation.on("http", this.onHttp.bind(this));
BackgroundGeolocation.on("heartbeat", this.onHeartbeat.bind(this));
BackgroundGeolocation.on("schedule", this.onSchedule.bind(this));
BackgroundGeolocation.on("error", this.onError.bind(this));

// 2. Configure it.
BackgroundGeolocation.configure({
  debug: true,
  desiredAccuracy: 0,
  stationaryRadius: 25,
  distanceFilter: 50,
  activityRecognitionInterval: 10000,
  url: 'http://localhost:8080/locations',
  autoSync: true
}, (state) => {
  // 3. Plugin is now ready to use.
  if (!state.enabled) {
    BackgroundGeolocation.start();
  }
});
// NOTE:  Do not execute *any* method which access location-services until
//  the callback to #configure method executes:

}`

How can i implement this with angular nativescript please guide with some details step by step

[christocracy]

That example code you pasted assumes the existence of those functions in YOUR app component.

YOU have to define those functions.