title: import { AngularFireDatabase, FirebaseListObservable } from “angularfire2/database”;
body: <p><strong>I'm getting an error that FirebaseListObservable has no imported member.
  Also, it's saying that import * as firebase from 'firebase/app'; is declared but not use.
  what's a way I can fix this issue.</strong> </p>
  
  <pre><code>import { Injectable } from '@angular/core';
  
  import  'rxjs/add/operator/map';
  
  
  import { AngularFireAuth } from 'Angularfire2/auth';
  
  import * as firebase from 'firebase/app';
  
  import { AlertController } from 'ionic-angular';
  
  import { Storage} from '@ionic/storage';
  
  import { AngularFireDatabase, FirebaseListObservable } from 'angularfire2/database';
  
  
  
  
  @Injectable()
  export class UserServiceProvider {
  
     items: FirebaseListObservable&lt;any&gt;;
  
  // this will be used to find out if a user has been loggged in then nav to another page
      success: boolean;
  
    constructor(private afAuth: AngularFireAuth, public alertCtrl: AlertController,
                private storage: Storage, private fbDb: AngularFireDatabase) {
  
                // This create a refrence to the users in the database
                this.items = fbDb.list('/users')
  
    }
  </code></pre>