我創建了一個新的MonoMac項目並使用Interface Builder（Xcode）打開了MainWindow.xib。在做一個簡單的改變（重命名爲Window標題）後，該項目不能再構建。 有誰知道如何解決這個問題？MonoMac：和Xcode 4.0錯誤：「Interface Builder文件中的未知窗口類MainWindow」
我在OS X 10.6.7上使用MonoDevelop 2.6，MonoFramework-2.10.1和Xcode 4.0。
這是錯誤消息：
2011-03-28 18:45:39.986 HelloWorld[30332:613] Unknown Window class MainWindow in Interface Builder file, creating generic Window instead
Unhandled Exception: System.InvalidCastException: Cannot cast from source type to destination type. at HelloWorld.MainWindowController.get_Window() <0x0002e> at HelloWorld.AppDelegate.FinishedLaunching (MonoMac.Foundation.NSObject) <0x0003d> at (wrapper dynamic-method) object.[HelloWorld.AppDelegate.Void FinishedLaunching(MonoMac.Foundation.NSObject)] (MonoMac.Foundation.NSObject,MonoMac.ObjCRuntime.Selector,MonoMac.Foundation.NSObject) <0x00033> at (wrapper native-to-managed) object.[HelloWorld.AppDelegate.Void FinishedLaunching(MonoMac.Foundation.NSObject)] (MonoMac.Foundation.NSObject,MonoMac.ObjCRuntime.Selector,MonoMac.Foundation.NSObject) <0x000eb> at (wrapper managed-to-native) MonoMac.AppKit.NSApplication.NSApplicationMain (int,string[]) <0x00003> at MonoMac.AppKit.NSApplication.Main (string[]) <0x00017> at HelloWorld.MainClass.Main (string[]) <0x00019>
感謝您的幫助。
乾杯
PS：我發現了一個http://monotouch.net/Documentation/Troubleshoot#Unknown_class_XXXX_in_Interface_Builder_filebut疑難解答幫助我猜它不能在這種情況下算，因爲類主窗口已經默認存在..