XCode故事板不显示场景

Question

After finishing work on one of my screens in my swift project yesterday. I came back to modify it today and saw this: screenshot http://i60.tinypic.com/zn7qbq.png

The screen is still working properly at runtime, I have no idea what could cause this. (Xcode 6.1, iOS 8.2)

Answer 1

Copy the ViewController by activating the ViewController you want to be copied like shown in your picture. Then press command + x to, click into the storyboard and then command + v to paste it again.

NOTE

Your segues will be gone, so remember their identifiers and from where, to where they go before copying / pasting the ViewControllers.