title: Unity, dependency error importing google play game services
body: <p>I update google the google play games services as described here: <a href="https://github.com/playgameservices/play-games-plugin-for-unity" rel="nofollow">unity plugin</a> , but i have the following error:</p>
  
  <blockquote>
    <p>Google.JarResolver.ResolutionException: Cannot find candidate artifact for com.google.android.gms:play-services-games:8.4+
      at Google.JarResolver.PlayServicesSupport.DependOn (System.String group, System.String artifact, System.String version) [0x00000] in :0 
      at GooglePlayGames.Editor.GPGSDependencies..cctor () [0x00024] in /Users/gabriele/Documents/number777pro/number/Number777/Assets/GooglePlayGames/Editor/GPGSDependencies.cs:46 
    UnityEditor.EditorAssemblies:SetLoadedEditorAssemblies(Assembly[])</p>
  </blockquote>
  
  <p>i try to find a solution, but without success, anyone know how to solve ?</p>