NSApplication.shared.terminate not exit?

flutter/macos/Runner/MainFlutterWindow.swift

@@ -1,5 +1,6 @@
 import Cocoa
 import AVFoundation
+import Foundation
 import FlutterMacOS
 import desktop_multi_window
 // import bitsdojo_window_macos
@@ -22,8 +23,8 @@ import texture_rgba_renderer
 class MainFlutterWindow: NSWindow {
     override func awakeFromNib() {
         if (!rustdesk_core_main()){
-            // print("Rustdesk core returns false, exiting without launching Flutter app.")
-            NSApplication.shared.terminate(self)
+            Process.terminate()
+            return
         }
         let flutterViewController = FlutterViewController.init()
         let windowFrame = self.frame