title: Facebook: The message could not be posted to this Wall
body: <p>I have some legacy FBML applications on Facebook.
  The share buttons are generated by FBML tag. i.e.</p>
  <pre><code>&lt;fb:share_button&gt;
  </code></pre>
  <p>As I share content using the button, it shows:</p>
  <blockquote>
  <p>Could not post to Wall</p>
  <p>The message could not be posted to this Wall.</p>
  </blockquote>
  <p>Does anyone know if there any changes from Facebook that makes the button not working anymore?
  Facebook is no more supporting FBML?</p>