title: Invalid Crashlytics API Key error when upgrading to Android Gradle Plugin 3.3.0
body: <p>After upgrading from Android Gradle Plugin <code>3.2.0</code> to <code>3.3.0-alpha13</code>, I'm seeing the following build error:</p>
  
  <pre><code>&gt; Task :app:fabricGenerateResourcesDebug FAILED
  ERROR - Crashlytics Developer Tools error.
  java.lang.IllegalArgumentException: Crashlytics found an invalid API key: null. 
  Check the Crashlytics plugin to make sure that the application has been added successfully! 
  Contact support@fabric.io for assistance.
  </code></pre>
  
  <p>It appears that the <code>processDebugGoogleServices</code> task is no longer running before the <code>fabricGenerateResourcesDebug</code> task.</p>
  
  <p>I'm on version <code>4.1.0</code> of the Google Services plugin and <code>1.25.4</code> of the Fabric plugin.</p>