Silverlight TDD测试项目通过Reflector加载类型异常

异常消息：Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.

被测项目(MathEngine)是Silverlight窗体项目，

MathEngine.App和MathEngine.MainPage分别是默认的应用程序类和主窗体类，因此包含了System.Windows的引用。
而测试项目(MathEngineTests)默认为非窗体项目，并没有添加对System.Windows的引用。

添加引用：C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\Silverlight\v4.0\System.Windows.dll，

该问题得以解决！

        public static IEnumerable<T> CreateInstances<T>()
        {
            try
            {
                Type basic = typeof (T);
                var types = basic.Assembly.GetTypes();
                var result = (from t in types
                              where basic.IsAssignableFrom(t) && !t.IsAbstract
                              //&& !t.HasAttribute<IgnoreAttribute>()
                              select (T) Activator.CreateInstance(t)).ToList();
                return result;
            }
            catch (ReflectionTypeLoadException ex)
            {
                //测试项目(MathEngineTests)无法加载:MathEngine.App和MathEngine.MainPage两种类型
                //需要添加引用：C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\Silverlight\v4.0\System.Windows.dll
                throw ex;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }