title: Extending Facebook Page Access Token
body: <p>i need to extend my facebook access token, I'm calling this:</p>
  
  <pre><code>https://graph.facebook.com/oauth/access_token? 
  client_id={MY PAGE ID}&amp;
  client_secret={THE SECRET KEY OF MY APP}&amp;
  grant_type=fb_exchange_token&amp;
  fb_exchange_token={AN ACCESS TOKEN FOR MY PAGE}
  </code></pre>
  
  <p>and I'm getting this error:</p>
  
  <pre><code>   "error": {
        "message": "Error validating application. Cannot get application info due to a system error.",
        "type": "OAuthException",
        "code": 101
     }
  </code></pre>
  
  <p>I've seen a lot of problem with that access_token, but none answer relative to pages, idk why facebook use api that why... but is the way...</p>
  
  <p>Thank you,</p>