I am developing a tabbed application.
When I create a new view controller and link it to the tab bar controller, unlike the other two default view controllers, this one
To add new ViewController once you have have an existing ViewController, follow below step:
ViewController
Click on background of Main.storyboard.
Main.storyboard
Search and select ViewController from object library at the utility window.
Drag and drop it in background to create a new ViewController.