Native Geolocations crashes the application

Ionic Framework Ionic Angular
1

Hello World!

I’m making a android app using ionic and angular.

When i try to inject the geolocation object in the constructor the application crashes.
Without any error’s the page is simply not shown.

I use the following code

import { Geolocation } from '@ionic-native/geolocation';


constructor(public  alertController: AlertController, private router: Router, private geolocation: Geolocation)
 {
 }

My env:

Ionic:

   Ionic CLI                     : 6.9.2 (C:\Users\Jim\AppData\Roaming\npm\node_modules\@ionic\cli)
   Ionic Framework               : @ionic/angular 5.1.1
   @angular-devkit/build-angular : 0.901.7
   @angular-devkit/schematics    : 9.1.7
   @angular/cli                  : 9.1.7
   @ionic/angular-toolkit        : 2.2.0

Capacitor:

   Capacitor CLI   : 2.1.0
   @capacitor/core : 2.1.0

Cordova:

   Cordova CLI       : 9.0.0 (cordova-lib@9.0.1)
   Cordova Platforms : android 8.1.0
   Cordova Plugins   : cordova-plugin-ionic-keyboard 2.2.0, cordova-plugin-ionic-webview 4.2.1, (and 5 other plugins)

Utility:

   cordova-res : 0.14.0
   native-run  : 1.0.0

System:

   Android SDK Tools : 26.1.1 (C:\Users\Jim\AppData\Local\Android\Sdk)
   NodeJS            : v12.16.2 (C:\Program Files\nodejs\node.exe)
   npm               : 6.14.4
   OS                : Windows 10