I have been having issues with the extensions for Jomsocial for both EasyBlog and Easydiscuss. Whenever I activate the general EasyDiscuss plugin for Jomsocial the following error occurs when trying to access a user profile in Jomsocial:
0 - Call to undefined method stdClass::compileSiteStylesheet()
After contacting JomSocial support they say that it is the third party extension:
"It may be that it uses outdated JRegistry::getvalue() that was removed in Joomla 3.x (it should use JRegistry::get() )"