title: Firebase Appinvites return with resultCode 3
body: <p>I want to try out app-invites from firebase - unfortunately onActivityResult reports back with onActivityResult 3.
  Using only the code from this documentation: <a href="https://firebase.google.com/docs/invites/android" rel="nofollow noreferrer">https://firebase.google.com/docs/invites/android</a></p>
  
  <p>I get:</p>
  
  <pre><code>requestCode=101, resultCode=3
  </code></pre>
  
  <p>Before I could select a contact and saw the title and text I passed - unfortunately no hint in the log.</p>
  
  <p>SHA-1 is entered and working for the app ( already successfully using firebase analytics in there )</p>