iOS 17 Features being depreciated

Hi! It seems that App Playgrounds require support for iOS 16.0 on this version of Xcode (not sure if this is a bug or intended for compatibility reasons). Even though you want to run your app on an iOS 17.0 device, the App Playground is set to build for iOS 16 devices too, and this is why your build fails (remember, to run a code it must first be built, and building requires your code to work on all devices it is configured for, not just on the one you use to test it).

You should've received some relevant error messages and fixes that mention the if #available version check or the @available(iOS 17.0, *) attribute. These may be useful If you want to maintain the iOS 16 compatibility. This is analogous to changing the minimum iOS deployment version in an .xcodeproj.

You could use the if #available version check like this:

import SwiftUI

struct ContentView: View {
    var body: some View {
        VStack {
            if #available(iOS 17.0, *) {
                ScrollView {
                    Image(systemName: "globe")
                        .imageScale(.large)
                        .foregroundColor(.accentColor)
                    Text("iOS 17.0")
                }
                .defaultScrollAnchor(.bottom)
            } else {
                ScrollView {
                    Image(systemName: "globe")
                        .imageScale(.large)
                        .foregroundColor(.accentColor)
                    Text("iOS 16.0")
                }
            }
        }
    }
}

Or you could add the @available(iOS 17.0, *) attribute to the enclosing View like this:

import SwiftUI

@available(iOS 17.0, *)
struct ContentView: View {
    var body: some View {
        VStack {
            ScrollView {
                Image(systemName: "globe")
                    .imageScale(.large)
                    .foregroundColor(.accentColor)
                Text("Hello, world!")
            }
            .defaultScrollAnchor(.bottom)
        }
    }
}

And then, in the App struct, use the if #available version check:

import SwiftUI

@main
struct MyApp: App {
    var body: some Scene {
        WindowGroup {
            if #available(iOS 17.0, *) {
                ContentView()
            } else {
                // Fallback on earlier versions
                Text("This feature requires iOS 17.0.")
            }
        }
    }
}

Now, if you want a "hacky" method, you could edit the package files of your App Playground. To do this, go to File > Show in Finder, and then open the Package.swift file. After that, you can change the .iOS("16.0") line to 17.0.

Also, I recommend you to use the latest Xcode version & macOS (they bring bug fixes and security improvements 😁).

Good luck and Happy New Year!