类型“<类型名称>”的值 无法转换为
我正在开发一个使用 VS 2008 内置测试工具的项目。
我会定期看到类似于以下内容的错误： “AcademyPro.Code.BLL.Appearance”类型的值无法转换为“AcademyPro.Code.BLL.Appearance”。 类型不匹配可能是由于文件引用与程序集“AcademyPro”的项目引用混合所致。 尝试将项目“AcademyPro”中对“academypro.dll”的文件引用替换为对“AcademyPro”的项目引用。
现在，在一个级别上，错误是正确的，有一个项目引用（编译代码所需）和一个文件引用（在名为 AcademyPro.accessor 的文件中）
如果我删除这些引用中的任何一个，则测试项目将无法编译。 我尝试删除这两个引用，清理构建并将它们添加回来。这似乎没有帮助。
看来我处于一种双输的境地，我需要项目引用来编译，我需要访问器引用，以便构建私有对象访问器，我需要能够编译它。
我需要做什么才能再次编译？
I'm working on a project that uses the testing tool built into VS 2008.
Periodically I will see an error comparable to:
Value of type 'AcademyPro.Code.BLL.Appearance' cannot be converted to 'AcademyPro.Code.BLL.Appearance'. Type mismatch could be due to the mixing of a file reference with a project reference to assembly 'AcademyPro'. Try replacing the file reference to 'academypro.dll' in project 'AcademyPro' with a project reference to 'AcademyPro'.
Now, on one level the error is correct, there is a project reference (required for the code to compile) and a file reference (in a file called AcademyPro.accessor)
If I remove either of these references then the test project fails to compile. I have tried removing both references, cleaning the build and adding them back in. this doesn't seem to help.
It seems I'm in a lose lose situaltion, I need the project reference to compile and I need the accessor reference so that the private object accessors are built, which I need to be able to compile.
What do I need to do to get this compiling again?
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我也遇到了同样的问题，我通过删除项目的所有引用来修复它，再次重新打开解决方案，然后添加引用，它对我有用。 （从谷歌得到这个解决方案）
I also got the same problem, i fixed it by remove all the references of the project, reopened solution again and then added the references, it worked for me. (Got this solution from google)
经过大量挖掘后，我发现我试图测试的项目（不是单元测试项目）有一个对其自身的项目引用。 我不知道为什么或如何它会引用自身，但它确实如此。 我删除了这个引用，现在一切都可以正确编译。
After much digging around I discovered that the project I was trying to test (not the unit test project) has a project reference to itself. I don't know why or how it would have a reference to itself, but it did. I removed this reference and now everything compiles properly.