System crash

Can anyone tell me why I would get a system crash with this bit of code:

import SwiftUI

struct ContentView: View {
let strings: [String] = (1...10).map {"Item ($0) " + String(repeating: "x", count: Int.random(in: 0...10))}

var body: some View {
    HStack {
        ForEach(strings, id: \.self) {
          Text($0)
            .padding(10)
            .background(Color.gray)
        }
    }
}

}

struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}

This is the crash details:
Could not launch Simulator.app.
Domain: DTiPhoneSimulatorErrorDomain
Code: 4
The operation couldn’t be completed. (OSStatus error -10827.)
Domain: NSOSStatusErrorDomain
Code: -10827
System Information
macOS Version 10.15.4 (Build 19E287)
Xcode 11.4 (16134)

Solved I just got the latest version of xcode and makes the difference. Thank you