unit-testing - 执行 windows phone 单元测试时出现异常

Question

我在为 Windows Phone 运行单元测试时收到此错误。我使用 Windows Phone 8 和 Visual Studio 2012。我不确定如何解决这个错误：

An exception occurred while invoking executor 'executor://mswptestadapter/v1': Object reference not set to an instance of an object.
========== Run test finished: 0 run (0:00:11.7426216) ==========

Answer 1

我缺少 .Net 和 VS2012 扩展的代码合同：

.Net 的代码合同 - http://www.google.com/url?q=http%3A%2F%2Fvisualstudiogallery.msdn.microsoft.com%2F1ec7db13-3363-46c9-851f-1ce455f66970%3FSRC%3DVSIDE&sa=D&sntz= 1&usg=AFQjCNGLZoTI_GSQJfSfJP5JuSNvv8SlOw

代码合同编辑器扩展 VS2012 - http://www.google.com/url?q=http%3A%2F%2Fvisualstudiogallery.msdn.microsoft.com%2F02de7066-b6ca-42b3-8b3c-2562c7fa024f%3FSRC%3DVSIDE&sa=D&sntz= 1&usg=AFQjCNEHZ2ObOxX0KF5PK7DAme9C1zh6Kg