title: Promise error after updated to Ionic 3.0.1 and Angular 4.0
body: <p>So after I successfully update to Ionic 3.0.1 and Angular 4.0, this error just randomly pop up in the console and I have no idea what is causing this error: </p>
  
  <pre><code>core.es5.js:1085 ERROR Error: Uncaught (in promise): false
  </code></pre>
  
  <p>I have Firebase and AngularFire in my Ionic project. Not sure if this related to the issue. But it is really frustrated I can not pinpoint the cause of the error. My app still works as normal tho. </p>