/macos/Runner/AppDelegate.swift:20:9: error: value of optional type 'NSWindow?' must be unwrapped to refer to member 'close' of wrapped base type 'NSWindow'
mainFlutterWindow.close() //close the default flutter window
^
mainFlutterWindow.close() //close the default flutter window
^
?
mainFlutterWindow.close() //close the default flutter window
^
!
** BUILD FAILED **
Exception: Build process failed
Exited (1).
mainFlutterWindow.close() //close the default flutter window
guard let window = mainFlutterWindow else {
print("mainFlutterWindow is nil")
return
}
window.close()
Flutter version: Flutter (Channel stable, 3.16.7, on macOS 14.2.1 23C71 darwin-arm64, locale en-US).