I am also seeing this exact error after meticulously going through the steps of the install; more than once.
Fatal error: Uncaught exception 'FacebookRestClientException' with message 'A session key is required for calling this method' in ...
/html/administrator/components/com_jfbconnect/assets/facebook-api/facebookapi_php5_restlib.php on line 2458
My server is running PHP5.
Joomla 1.5.14 (legacy)
<!-- w --><a class="postlink" href="
www.jasonsfitkitchen.com">
www.jasonsfitkitchen.com
Any help is greatly appreciated.
thanks,
Jay