title: ERROR: You attempted to use a firebase module that's not installed on your Android project by calling firebase.app() WITH EXPO
body: <p>I'm using <code>react-native-firebase/messaging</code> and I'm working with the expo.
  I tried using <code>messaging().getToken();</code> but this error occurred
  `</p>
  <pre><code>Error: You attempted to use a firebase module that's not installed on 
       your Android project by calling firebase.app().
  
  Ensure you have:
  
  1) imported the 
  'io.invertase.firebase.app.ReactNativeFirebaseAppPackage' module in your 
  'MainApplication.java' file.
  
  2) Added the 'new ReactNativeFirebaseAppPackage()' line inside of the RN 
  'getPackages()' method list.
  
   See http://invertase.link/android for full setup instructions.` 
  </code></pre>
  <p>I followed the expo docs steps to use the firebase sdk but I keep getting this error. This is the configuration in <code>app.json</code>:</p>
  <pre><code>&quot;ios&quot;: {
    &quot;supportsTablet&quot;: true,
    &quot;bundleIdentifier&quot;: &quot;com.siriusnet.tiwsal&quot;,
    &quot;buildNumber&quot;: &quot;1.0.0&quot;
  },
  &quot;android&quot;: {
    &quot;package&quot;: &quot;com.siriusnet.tiwsal&quot;,
    &quot;googleServicesFile&quot;: &quot;./google-services.json&quot;,
    &quot;versionCode&quot;: 1,
    &quot;adaptiveIcon&quot;: {
      &quot;foregroundImage&quot;: &quot;./assets/adaptive-icon.png&quot;,
      &quot;backgroundColor&quot;: &quot;#FFFFFF&quot;
    }
  },
  </code></pre>