How To Fix Error Use Of Unresolved Identifier ‘RootViewController’ In Xcode Swift Project
When I develop an iOS project in Xcode, I create a custom class RootViewController in RootViewController.swift file, this class is a subclass of UIViewController. But during the development process, when I use this custom class to create an object in another swift file ( for example SceneDelegate.swift ), I meet an error which said Use […]