Can't start Android app after updating to beta.4

Ionic Framework ionic-v3
9

I guess that you have to move the declaration of the class properties to the constructor. Below I made some changes to the code of the workaround that you’re using that might resolve the issue. Make sure to accordingly update the other files in your project too.

// app.js
// ...
export class SomeApp {
  // This is not a valid JS syntax and have to be moved to the constructor.
  //@ViewChild('rootNavController') nav:NavController;
  
  // Specify the types of the constructor parameters here
  // so that Angular 2 knows which providers to inject.
  static get parameters() {
    return [[Platform], [NavController]];
  }

  constructor(platform, @ViewChild('rootNavController') nav) {
    this.nav = nav;
    this.root = RootPage;
    // ...
  }
}