If you have invalid xml and run tns run ios or android the app will crash and an error will be shown

1. Create project
2. Change the xml to be invalid (e.g. "")
3. Run "tns run ios" or "tns run android"
   Actual: The app will crash and an error will be shown in console

1   0x109ad6d4b NativeScript::FFICallback<NativeScript::ObjCMethodCallback>::ffiClosureCallback(ffi_cif*, void*, void**, void*)
2   0x10a17a28e ffi_closure_unix64_inner
3   0x10a17abd2 ffi_closure_unix64
4   0x10aea03c3 -[UIViewController __viewWillAppear😏
5   0x10aea1b12 -[UIViewController viewWillMoveToWindow😏
6   0x10ada56d2 -[UIView(Hierarchy) _willMoveToWindow:withAncestorView😏
7   0x10adb6442 -[UIView(Internal) _addSubview:positioned:relativeTo😏
8   0x10ada4cf8 -[UIView(Hierarchy) addSubview😏
9   0x10ad62c6f -[UIWindow addRootViewControllerViewIfPossible]
10  0x10ad63070 -[UIWindow _setHidden:forced😏
11  0x10ad75ebe -[UIWindow makeKeyAndVisible]
12  0x10a17aa2d ffi_call_unix64
13  0x12799e490
file:///app/tns_modules/tns-core-modules/ui/builder/builder.js:196:56: JS ERROR Error: Building UI from XML. @file:///app/home/home-page.xml:13:5"

Expected: App not to crash and the red label on the device to be shown with the proper text

使用 XML 包含無效元素（例如 ）的專案重現，然後執行 tns run ios 和 tns run android。從 tns-core-modules/ui/builder/builder.js:196 開始，並將主控台錯誤與裝置的預期行為進行比較；當應用程式不當機且裝置顯示正確的紅色錯誤標籤時，即表示完成。