Angularfire and FirebaseListObservable has no exported member angularfire2 using ionic 2 app

Question

FirebaseListObservable and Angularfire has no exported member "angularfire2" when i am creating Ionic 2 app import both files in home.ts

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

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 ) {
}
}

Answer 1

The solution is to simply change this line

import {AngularFire, FirebaseListObservable} from 'angularfire2'; 

to

import { AngularFireDatabase, FirebaseListObservable } from "angularfire2/database"; 

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