title: Error - The import com.google.android.gms.ads cannot be resolved
body: <p>I follow instruction from Google developpers but i have a problem. I want display publicity ( with AdMob ) and Google Play Game services on my application. </p>
  
  <p>I display publicity with success and it's work ( I use google play services lib ). But when I want to add the BaseGameUtils library to use Google Play Game Services, I have an error. </p>
  
  <p>My import which work previously doesn't works after the new library import.</p>
  
  <p><code>The import com.google.android.gms.ads cannot be resolved</code></p>
  
  <p>I don't remove google play services lib so why the error appears ?</p>
  
  <p>Thanks</p>