我在界面中得到"非抽象,非.cctor方法"的原因是什么？

Question

我有一个非常奇怪的问题.我在dll中定义了一个接口,如下所示:

public interface IKreator2
{
    string Name { get; set; }
    string Description { get; set; }

    INotifyPropertyChanged Settings { get; set; }

    InfiniRenderJob Job { get; set; }
    UserControl UI { get; set; }

    void Init();
    //void OnClose();
}

如果我在我的WPF应用程序中链接到此dll,则调试器在加载时崩溃(内部错误:调试器中的未处理异常:: HandleIPCEvent,ID = 0x246).如果我用"debug unmanaged code"调试应用程序,我会收到以下错误:

• InfiniRender.Host.exe中0x76977945(KernelBase.dll)的第一次机会异常:Microsoft C++异常:内存位置0x0029c5b8处的EETypeLoadException.
• InfiniRender.Host.exe中的0x76977945(KernelBase.dll)的第一次机会异常:Microsoft C++异常:[rethrow]在内存位置0x00000000.
• InfiniRender.Host.exe中出现ype'System.TypeLoadException'的第一次机会异常
• InfiniRender.Host.exe中出现未处理的"System.TypeLoadException"类型异常附加信息:Nicht abstrakte Nicht-.cctor-Methode in einer Schnittstelle.

在那一刻,我绝对不知道发生了什么.甚至没有接口的实现,也没有类使用它.如果我将方法"Init"注释掉,一切都按预期工作.有任何想法吗？？

[编辑]这是接口init方法的MSIL:

.method public hidebysig newslot virtual 
      instance void  Init() cil managed
{
// Code size       96 (0x60)
.maxstack  3
.locals init ([0] class [mscorlib]System.Exception CS$0$0__ex)
IL_0000:  ldsfld     class [NLog]NLog.Logger '<>z__LoggingImplementationDetails'::l14
IL_0005:  callvirt   instance bool [NLog]NLog.Logger::get_IsTraceEnabled()
IL_000a:  brfalse.s  IL_001b

IL_000c:  ldsfld     class [NLog]NLog.Logger '<>z__LoggingImplementationDetails'::l14
IL_0011:  ldstr      "Entering: InfiniRender.IKreator2.Init()"
IL_0016:  call       instance void [NLog]NLog.Logger::Trace(string)
.try
{
  IL_001b:  newobj     instance void [mscorlib]System.NotSupportedException::.ctor()
  IL_0020:  throw

  IL_0021:  ldsfld     class [NLog]NLog.Logger '<>z__LoggingImplementationDetails'::l14
  IL_0026:  callvirt   instance bool [NLog]NLog.Logger::get_IsTraceEnabled()
  IL_002b:  brfalse.s  IL_003c

  IL_002d:  ldsfld     class [NLog]NLog.Logger '<>z__LoggingImplementationDetails'::l14
  IL_0032:  ldstr      "Leaving: InfiniRender.IKreator2.Init()"
  IL_0037:  call       instance void [NLog]NLog.Logger::Trace(string)
  IL_003c:  leave.s    IL_005f

}  // end .try
catch [mscorlib]System.Exception 
{
  IL_003e:  ldsfld     class [NLog]NLog.Logger '<>z__LoggingImplementationDetails'::l14
  IL_0043:  callvirt   instance bool [NLog]NLog.Logger::get_IsWarnEnabled()
  IL_0048:  brfalse.s  IL_005d

  IL_004a:  stloc.0
  IL_004b:  ldsfld     class [NLog]NLog.Logger '<>z__LoggingImplementationDetails'::l14
  IL_0050:  ldstr      "An exception occurred:\n{0}"
  IL_0055:  ldloc.0
  IL_0056:  call       instance void [NLog]NLog.Logger::Warn(string,
                                                             object)
  IL_005b:  rethrow
  IL_005d:  leave.s    IL_005f

}  // end handler
IL_005f:  ret
} // end of method IKreator2::Init

在我看来,NLog应该受到责备？直到今天NLog从来没有遇到任何问题......

Answer 1

因此，这里的罪魁祸首是“Postsharp.Diagnostics.Toolkit”，它将代码添加到接口方法声明中，导致调试器混乱。

感谢所有提供帮助的人！