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I've just installed Jomsocial Pro on a new installation of Joomla after my previous installation became corrupted due to a bad component install, and i'm receiving these errors:
Warning: include_once(AZRUL_SYSTEM_PATH/pc_includes/JSON.php): failed to open stream: No such file or directory in /(snip)/administrator/components/com_community/models/network.php on line 33
Warning: include_once(): Failed opening 'AZRUL_SYSTEM_PATH/pc_includes/JSON.php' for inclusion (include_path='.:/usr/local/php53/lib:/usr/lib/php:/usr/local/lib/php') in /(snip)/administrator/components/com_community/models/network.php on line 33
Fatal error: Class 'Services_JSON' not found in /(snip)/administrator/components/com_community/models/network.php on line 40
This happened just after installing JomSocial Pro using the remote installer and when trying to access the admin console.