title: Icon error building Cordova
body: <p>Using <code>cordova build</code> on a one-year-old project raises:</p>
  
  <pre><code>:processDebugResources
  my_project/platforms/android/build/intermediates/manifests/full/debug/AndroidManifest.xml:24: error: Error: No resource found that matches the given name (at 'icon' with value '@drawable/icon').
  </code></pre>
  
  <p>And then crushes:</p>
  
  <pre><code>FAILURE: Build failed with an exception.
  </code></pre>
  
  <p>Any idea?</p>