Warning: main(Horde/SyncML/Command/Sync/SyncElement.php) [function.main]: failed to open stream: No such file or directory in /var/www/orszolgalat.knpi.hu/egroupware/phpgwapi/inc/horde/Horde/SyncML/Command/Sync/Add.php on line 3

Warning: main() [function.include]: Failed opening 'Horde/SyncML/Command/Sync/SyncElement.php' for inclusion (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/orszolgalat.knpi.hu/egroupware/phpgwapi/inc/horde/Horde/SyncML/Command/Sync/Add.php on line 3

Fatal error: Class horde_syncml_command_sync_add: Cannot inherit from undefined class horde_syncml_command_sync_syncelement in /var/www/orszolgalat.knpi.hu/egroupware/phpgwapi/inc/horde/Horde/SyncML/Command/Sync/Add.php on line 18