奇怪的 System.Runtime.InteropServices.COMException 错误

Question

我在我的服务器上发布并安装了一个Windows Forms 应用程序，但是当我尝试使用它时，很遗憾地给了我这个错误：

************** Exception Text **************
System.Runtime.InteropServices.COMException (0x80040154): Retrieving the COM class factory for component with CLSID {40942A6C-1520-4132-BDF8-BDC1F71F547B} failed due to the following error:
80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
    at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)
    at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache)
    at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache)
    at System.Activator.CreateInstance(Type type, Boolean nonPublic)
    at System.Activator.CreateInstance(Type type)
    at PDFtoDoc.Form1.DoOCR(String FullPath)
    at PDFtoDoc.Form1.CheckFileAndDoOCR(String directoryPath)
    at PDFtoDoc.Form1.timer1_Tick(Object sender, EventArgs e)
    at System.Windows.Forms.Timer.OnTick(EventArgs e)
    at System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message& m)
    at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

这对我来说似乎是一个“.dll”文件，但我不知道是哪一个，或者这是否是真正的问题。什么可能导致这种情况？我该如何解决？

Answer 1

这是 COM 互操作的问题。您需要手动将dll文件复制到应用程序或将dll文件打包到安装程序中。