从HRESULT异常：0x80004002（E_NOINTERFACE） [英] Exception from HRESULT: 0x80004002 (E_NOINTERFACE)

问题描述

我负责维护一个C＃应用程序的（2005 VS）。这个C＃应用程序调用一个dll（MYDLL.DLL）。我需要做的有问题的DLL中的一些变化。

I'm in charge of the maintenance of a C# application (VS 2005). This C# applications calls a dll ("mydll.dll"). I needed to make a few changes on the dll in question.

我的文件mydll.vbp这是写在Visual Basic 6.0。我做了我的变化，Visual Studio和，那么，制造MYDLL从Visual Basic接口。

I have the file "mydll.vbp" that was written in Visual Basic 6.0. I made my changes in Visual Studio and, then, "made "mydll"" from the Visual Basic interface.

的问题是，现在，每次我试图实例类从MYDLL.DLL，在debbuger模式在C＃中，我有以下的InvalidCastException的

The problem is that, now, at each time I try to instance a class from "mydll.dll" in debbuger mode in C#, I have the following "InvalidCastException"

无法转换类型mydll.ClassFrommydll的COM对象的接口类型mydll._ClassFrommydll。此操作失败的原因是对IID{384FB79F-B636-4655-9441-8222692AB8AE}接口的COM组件调用QueryInterface失败，原因是以下错误：不支持此接口（异常来自HRESULT：0x80004002（E_NOINTERFACE）） 。

Unable to cast COM object of type mydll.ClassFrommydll to interface type mydll._ClassFrommydll'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{384FB79F-B636-4655-9441-8222692AB8AE}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)).

我试图重新参考相关的DLL ...但是，这并不能改变什么。

I tried to re-reference the dll in question ... but that does not change anything.

这是它可能来自任何想法？

Any idea on what it could come from ?

许多许多感谢所有yopu的谁可以提供帮助。已经坚持了这个问题，现在天。开始感到压力......

Many many thanks to all of yopu who can help. Have been stuck with this problem for days now. Start to feel the pressure ...

推荐答案

标记主类[STAThread]
和您的问题将得到解决

mark the main class [STAThread] and your problem will be solved

这篇关于从HRESULT异常：0x80004002（E_NOINTERFACE）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！