title: Crashlytics distribution for app with multiple flavors
body: <p>I'm trying to use crashlytics distribution for android app with multiple flavors. 
  Everything worked fine when there were no flavors, but as soon as I've added two flavors I'm receiving </p>
  
  <pre><code>*'Task 'crashlyticsUploadDistributionRelease' not found in root project'*
  </code></pre>
  
  <p>Am I missing something?</p>