title: Problem with post a picture in Facebook Wall with Graph API
body: <p>I am using the Graph API for Facebook in order to post a message and a picture through my application to the user's wall. 
  I use this one:</p>
  
  <pre><code>$facebook-&gt;api('/me/feed', 
                 'post', 
                 array( 
                   'access_token' =&gt; $token, 
                   'message' =&gt; $message, 
                   'caption' =&gt; $caption, 
                   'description' =&gt; $description, 
                   'picture' =&gt; $picture, 
                   'cb' =&gt; ''
                  )
                );
  </code></pre>
  
  <p>This works fine for around 4-5 months now. Suddenly I cannot post the picture. I haven't changed my code at all, but now I cannot see the image that is supposed to be posted. </p>
  
  <p>I really don't know what is the problem. I would really appreciate any help! </p>
  
  <p>Thanks in advance</p>