In Xcode 11, create a new Xcode project (Shift-Command-N), select iOS ▸ Single View App, name the project RGBullsEye, then select SwiftUI in the User Interface menu : Save your project somewhere outside the RGBullsEye-Starter folder.
How do I get SwiftUI for Xcode?
In Xcode 11, create a new Xcode project (Shift-Command-N), select iOS ▸ Single View App, name the project RGBullsEye, then select SwiftUI in the User Interface menu : Save your project somewhere outside the RGBullsEye-Starter folder.