“无法强制转换透明代理以进行输入"从powerpoint加载项调用第三方dll时出现错误 [英] "Unable to cast transparent proxy to type" error when calling a third-party dll from powerpoint add-in

问题描述

我正在从自己的Powerpoint加载项中调用第三方dll(与我们合作的合作伙伴公司的加载项的接口)中的一些代码.

I'm calling some code from a third-party dll (an interface to an add-in from a partner company that we work with) from my own powerpoint add-in.

他们提供了一个示例解决方案，其中的以下代码可以正常工作.

They have provided a sample solution where the following code works as expected.

  Microsoft.Office.Core.COMAddInthirdPartyAddin = app.COMAddIns.Item("thirdthirdyAddin");
  IthirdPartyService x = thirdPartyServiceFactory.GetThirdPartyService(thirdPartyAddin.Object);

  Microsoft.Office.Core.COMAddIn thirdPartyAddin= app.COMAddIns.Item("thirdPartyAddin");
  IthirdPartyService x =thirdPartyServiceFactory.GetThirdPartyService(thirdPartyAddin.Object);

我正在尝试使用相同的代码并在我的插件中调用它.

I am trying to use the same code and call it inside my plug-in.

发生的事情是，我绑定到thirdPartyAdd-in很好.但是，当我调用第二行以获取第三方服务的接口时，出现以下异常:

What is happening is that I bind to a thirdPartyAdd-in just fine. However, when I call the second line, to get the the interface to the thirdparty service, I get the following exception:

无法将透明代理转换为类型IthirdPartyService".

"Unable to cast transparent proxy to type IthirdPartyService" .

可能是什么问题?我想我已经搜索了每个由Google生成的关于此问题的主题，没有任何帮助.

What could possibly be the issue? I think I've searched through every single google-generated topic on this issue, an nothing helped.

提前谢谢

推荐答案

程序员，

我正在尝试让其他人参与此案，请耐心等待.

I am trying to involve some other one into this case, wait it patiently, please. 

谢谢.

最好的问候

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