Your steps are exactly the process. I have tried it from the main wall as well with the same error. I have been digging into this deeper myself as well. On Facebook I create
Action: Upload to Object: Gallery
Action: Join to object: Event (Could be wrong on that, I cant remember but I followed the directions)
I also did the same in JFB Connect. I think this may be related to OG issues with the new version of JomSocial and JFBConnect but could be wrong. Here is a screenshot from the Facebook Debug site that I cannot clear up.
Also, this info below pulls from the head.php file in Jomsocial com_community/helpers/head.php
socialdebug.com/results?url=http%3A%2F%2Fhmh.nettechs.net%2F
Error listed on link above
og:see_also /index.php/groups/display
og:see_also /index.php/photos/display
og:see_also /index.php/videos/display
og:see_also /index.php/calendar/display
Code thats being pulled from
* @link
developers.facebook.com/docs/reference/o.../object-type/website
*/
case 'website':
self::addOpengraph('og:see_also', CRoute::_('index.php?option=com_community&view=frontpage'), true);
self::addOpengraph('og:see_also', CRoute::_('index.php?option=com_community&view=groups&task=display'), true);
self::addOpengraph('og:see_also', CRoute::_('index.php?option=com_community&view=photos&task=display'), true);
self::addOpengraph('og:see_also', CRoute::_('index.php?option=com_community&view=videos&task=display'), true);
self::addOpengraph('og:see_also', CRoute::_('index.php?option=com_community&view=events&task=display'), true);
self::addOpengraph('og:site_name', JFactory::getConfig()->get('sitename'));
break;