title: Error #200 when adding comments on friends post
body: <p>I get error #200 when trying to add some comments on friends post:</p>
  
  <pre><code>{
     "name": "Comment", 
     "link": "https://www.facebook.com/586953601/posts/10151621828953602"
  },
  
  D/Facebook-Util(11192): POST URL: https://graph.facebook.com/10151621828953602/comments
  
  
  D/(11192): Facebook {"error":{"message":"(#200) Permissions error","type":"OAuthException","code":200}}
  </code></pre>
  
  <p>I have set permissions in order to do this: <code>publish_stream</code> and <code>publish_actions</code>. Do I also need to set <code>offline_access</code> permission?</p>
  
  <p>I am building this app using sdk version 3.0.2.</p>
  
  <p>Why can't I add comments?</p>