Xcode 7.1 Swift 2 Unknown class in Interface Builder file

I've created new Cocoa Touch File. Named it SwipingViewController.

Then try to add Custom Class to ViewController.

And when I run the app I receive an error

2015-10-09 10:53:25.054 ParseStarterProject[5369:389307] Unknown class SwipingViewController in Interface Builder file.

Related: Xcode 6 Strange Bug: Unknown class in Interface Builder file

Here is my projects files

In storyboard below the Custom Class field the module is set to None. Change that to your app module or just remove and enter class again, it should set to default like this:

For me the problem was that the class was not part of the Target Membership. Just add the class to the target, and you should see it back on the interface builder.