C# StructureMap无法加载文件或程序集

我正在WebAPI项目中使用StructureMap MVC。
当我运行单元测试或集成测试时，使用xUnit和ReSharper，我得到：

System.IO.FileNotFoundException
Could not load file or assembly 'MyApi.MyServices, Version=1.0.0.0, Culture=neutral,     PublicKeyToken=null' or one of its dependencies. The system cannot find the path specified.

这在我的测试中是随机发生的。当我再次尝试运行时，没有出现此错误

以下是发生错误的地方：

ObjectFactory.Initialize(x =>
{
    x.For<IProvider>().LifecycleIs(Lifecycles.GetLifecycle(InstanceScope.PerRequest)).Use<SQLiteProvider>();
    x.For<ILog>().LifecycleIs(Lifecycles.GetLifecycle(InstanceScope.Singleton)).Use(Logger.Object);
    x.For<ISession>().LifecycleIs(Lifecycles.GetLifecycle(InstanceScope.PerRequest)).Use(() => Session);
});

---

您正在使用ReSharper 8吗？xunit runner有一个看起来像这样的讨厌的bug。确保将xunit扩展（ReSharper->extensionmanager）更新为1.2

 at StructureMap.ObjectFactory.Initialize(Action`1 action) in c:\BuildAgent\work\767273992e840853\src\StructureMap\ObjectFactory.cs: line 61