Warning: require_once(include/site_ip.php) [function.require-once]: failed to open stream: No such file or directory in E:\www\ctrl\index.php on line 1

Fatal error: require_once() [function.require]: Failed opening required 'include/site_ip.php' (include_path='.;D:\AppServ\php5\library') in E:\www\ctrl\index.php on line 1