title: Firebase Chat in Xamarin
body: <p>I'm trying to create a chat app in Xamarin.Android, using this tutorial:<br>
  <a href="https://www.androidtutorialpoint.com/firebase/real-time-android-chat-application-using-firebase-tutorial/" rel="nofollow noreferrer">https://www.androidtutorialpoint.com/firebase/real-time-android-chat-application-using-firebase-tutorial/</a></p>
  
  <p>However, not everything that there is in the Java code appears to be in Xamarin.<br>
  For instance:</p>
  
  <pre><code> Firebase reference1;
   Firebase.setAndroidContext(this);
   reference1 = new Firebase("https://androidchatapp-76776.firebaseio.com/messages/" + UserDetails.username + "_" + UserDetails.chatWith);
  </code></pre>
  
  <p>Even though I added all packages of Firebase that are needed, I still can't make a variable of 'Firebase'.<br>
  What am I missing?</p>