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Compilation error on project 2 entitled "Cows and Bulls".

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Hello, I am studying the book "Hacking with macOS: SwiftUI Edition". I'm in the Bulls and Cows project, chapter "Customizing the game".

When I enter this code, I get a compilation error: "Cannot find 'SettingsView' in scope "

I don't know what to do, could someone help me?

struct CowsAndBullsApp: App {
    var body: some Scene {
        WindowGroup {

        Settings(content: SettingsView.init)


OK, I understand, there is a piece of code missing from the book. It is missing the declaration of the new SettingsView in ContentView.swift.


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