title: android - Cannot resolved symbol PlusShare
body: <p>I follow this <a href="https://developers.google.com/+/mobile/android/share/" rel="nofollow">Google link</a> to make a sharing function in my application. However, Android studio <code>cannot resolved symbol PlusShare</code> in the sample code.</p>
  
  <p>My google play service is updated to the newest version (Rev 32).</p>
  
  <p>I also have this line in my gradle:</p>
  
  <p><code>compile 'com.google.android.gms:play-services-auth:9.4.0'</code></p>
  
  <p>If I am missing anything in my code, please let me know.</p>
  
  <p>Thank you in advance!</p>