Windows Phone 单元测试输出中的无奈错误

Question

在 Visual Studio express 2012 update 4 下，我创建了 windows phone 应用程序，为此我添加了 Windows Phone 单元测试应用程序。当我尝试运行测试时，Tests 输出窗口显示以下错误：

------ Run test started ------
Failed to import IDeployService. Cannot proceed with xap deployment. This failure can be observed if the component model cache (typically located in %LocalAppData%\Microsoft\VisualStudio\[version]\ComponentModelCache) is not up-to-date.  To come out of this error, close all instances of visual studio, delete the component model cache folder and try again.
Unit tests in source D:\projekty\PhoneApp3\TestApp1\Bin\x86\Debug\TestApp1.dll cannot be run. Please create a Windows Store or Windows Phone Unit Test project.
========== Run test finished: 0 run (0:00:00,0009998) ==========

删除%LocalAppData%\Microsoft\VisualStudio\[version]\ComponentModelCache 没有帮助

编辑： 如果我在 VS 2013 Express for Windows 中打开相同的解决方案，我可以成功运行这些测试

Answer 1

是 VS21012+Update4 和 VS2013 Express 并排安装吗？

也许您可以尝试从控制面板中的“程序和功能”修复您的 VS2012 安装，看看是否可以解决此问题？