title: Angularfire and FirebaseListObservable has no exported member angularfire2 using ionic 2 app
body: <p>FirebaseListObservable and Angularfire has no exported member "angularfire2" when i am creating Ionic 2 app import both files in home.ts</p>
  
  <p>My Cordova and ionic version is
  Cordova version 6.5.0
  Ionic Version 2.2.3
  Node version 6.10.2
  typings version 2.1.1
  typescript version 2.3.2</p>
  
  <pre><code>import { Component } from '@angular/core';
  import { NavController } from 'ionic-angular';
  import {AngularFire, FirebaseListObservable} from 'angularfire2';
  @Component({
  selector: 'page-home',
  templateUrl: 'home.html'
  })
  export class HomePage {
  constructor(public navCtrl: NavController, af:AngularFire ) {
  }
  }
  </code></pre>