Firebase Android - Skipping initialization
<p>I am currently implementing an Android app, which uses Firebase Cloud Messaging.
I've implemented everything according to the tutorial on the Firebase page.</p>

<p>However, whenever I try to run my app it seems like the Firebase initialization fails. Both, on an emulator and on a real device I get this debug message:</p>

<pre><code>D/FirebaseApp: com.google.firebase.auth.FirebaseAuth is not linked. Skipping initialization.
W/InstanceID/Rpc: Found 10010
D/FirebaseApp: com.google.firebase.crash.FirebaseCrash is not linked. Skipping initialization.
</code></pre>

<p>It doesn't call the <code>InstanceIDListener</code>.
And it strangely worked with the emulator once.</p>