title: List of Facebook error codes
body: <p>I'm looking for a list of all Facebook can return when you try to fetch infos using Graph API. Can anyone help?</p>
  
  <p>Facebook returns a 400 HTTP error, and a JSON content like:</p>
  
  <pre><code>{
     "error": {
        "type": "OAuthException",
        "message": "Invalid OAuth access token signature."
     }
  }
  </code></pre>
  
  <p>I'm searching the different returns of the same kind it is possible to get.</p>