ios - The app delegate must implement the window property if it wants to use a main storyboard file swift

Question

I have just developed an app, but when running in the simulator the debugger console says:

The app delegate must implement the window property if it wants to use a main storyboard file.

I have an app delegate file. What does the message mean, and how can I get my app working?

Answer 1

Make sure you have the following property declaration in your AppDelegate class:

var window: UIWindow?