Warning: require_once(includes/data/config.php) [function.require-once]: failed to open stream: No such file or directory in C:\daotao\mainfile.php on line 129

Fatal error: require_once() [function.require]: Failed opening required 'includes/data/config.php' (include_path='.;C:\xampp\php\pear\') in C:\daotao\mainfile.php on line 129