Could not find keyboard scene delegate for interaction view - swift

Question

Below iOS 13 my UITextField correctly launches a keyboard and lets the user type in their answer.
Above iOS 13, textFieldDidBeginEditing() is triggered when I tap on the text field, but the keyboard is not shown, so the user cannot give their answer .
Debug console doesn't immediately throw any errors, but eventually the following message comes up, which I think is the key:
Could not find keyboard scene delegate for interaction view
I think the error appears in the later iOSs because scenes become the main thing - and somewhere I needed to set up a delegate to allow the keyboard to appear over the fron of the first scene.
No idea how to do this though!
My UITextField is totally standard. To reproduce the error, I have the following set up code in my SceneDelegate
class SceneDelegate: UIResponder, UIWindowSceneDelegate {
var window: UIWindow?
func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
let windowScene = UIWindowScene(session: session, connectionOptions: connectionOptions)
self.window = UIWindow(windowScene: windowScene)
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let initialViewController = storyboard.instantiateViewController(withIdentifier: "VC" )
self.window?.rootViewController = initialViewController
self.window?.makeKeyAndVisible()
guard let _ = (scene as? UIWindowScene) else { return }
}
In my actual app - I use this subroutine to launch a tutorial if the user is new (i.e. I need to be able to change the starting view controller)

Answer 1

Something appears to be out of sorts in your SceneDelegate function scene().
Try this code which I grabbed from another project I have at hand.
func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
guard let windowScene = (scene as? UIWindowScene) else { return }
window = UIWindow(frame: windowScene.coordinateSpace.bounds)
window?.windowScene = windowScene
self.window?.rootViewController = ViewController()
self.window?.makeKeyAndVisible()
}