Warning: require_once(C:\xampp\htdocs\inc\class.core.php) [function.require-once]: failed to open stream: No such file or directory in C:\xampp\htdocs\global.php on line 30

Fatal error: require_once() [function.require]: Failed opening required 'C:\xampp\htdocs\inc\class.core.php' (include_path='.;C:\xampp\php\PEAR') in C:\xampp\htdocs\global.php on line 30