Segue Failed while Dismissing Current Controller

Hi, Greetings!

I have an application in which I am performing segue while closing the current view controller. I am using like this:

DismissViewController(this);
PerformSegue("SecondViewController");

This crashes the application saying that maybe this controller was never visible. But if I comment the DismissViewController(this); , then it works fine.
Any help is appreciated. Thanks in advance.