Warning: require_once(./lib/pkp/includes/bootstrap.php): failed to open stream: No such file or directory in D:\xampp\htdocs\ejurnal\index.php on line 15

Fatal error: require_once(): Failed opening required './lib/pkp/includes/bootstrap.php' (include_path='\xampp\php\PEAR') in D:\xampp\htdocs\ejurnal\index.php on line 15