I am getting desperate with .toolbar in Xcode Version 12.2 beta 3 (12B5035g). I have got this code: import SwiftUI struct ContentView: View {     let displayedStrings: [String]     var body: some View {         List(displayedStrings, id: \.self) { message in             Text(message)         }         .navigationTitle("Messages")         .toolbar {             ToolbarItem(placement: .primaryAction) {                 Button("Primary Action") {}             }                          #if os(iOS)             ToolbarItem(placement: .bottomBar) {                 Button("Bottom Bar") {}             }             #endif             ToolbarItem(placement: .status) {                 Button("Status") {}             }         }     } } struct ContentView_Previews: PreviewProvider {     static var previews: some View {         ContentView(displayedStrings: ["String 1", "String 2", "String 3"])     } } In Simulator (for iPhone 12 mini and iPad Air 4th gen) there is a toolbar at the bottom with two buttons: "Button Bar", aligned left "Status", aligned center On macOS version 11.0 Beta (20A5395g) the app crashes on start: dyld`_dyld_debugger_notification: >  0x113b12c6c <+0>: pushq  %rbp     0x113b12c6d <+1>: movq   %rsp, %rbp     0x113b12c70 <+4>: popq   %rbp     0x113b12c71 <+5>: retq    Items placed e.g. as .confirmationAction or .cancellationAction or .destructiveAction do not show anywhere at all. I shall be most thankful for any directions pointing to working examples or instructions including toolbars for iOS and macOS in SwiftUI!