Aftersave function redirect to page issue in cakephp 2?

I save data in controller and after save data, i trigger one mail and i redirect new page in oftersave function. I am using controller only not view file, using $this->autoLayout => flase.
But it show missing view file, redirect code is not executed in MAC system, But Windows system working fine.

How to fix it? Any one can help me?

Thanks to advance.