关于c＃：ServiceStack元数据页面抛出MemberAccessException：无法创建抽象类

ServiceStack metadata page throws MemberAccessException: Cannot create an abstract class

假设您有一个请求类AllCustomers，它返回一个IEnumerable

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[Route("/customers")]
public class AllCustomers : IReturn<IEnumerable<Customer>>
{
}

如果您转到该请求的元数据页，将出现以下崩溃：

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[MemberAccessException: Cannot create an abstract class.]
System.Runtime.Serialization.FormatterServices.nativeGetUninitializedObject(RuntimeType type) +0
System.Runtime.Serialization.FormatterServices.GetUninitializedObject(Type type) +56
ServiceStack.Text.<>c__DisplayClass3.<GetConstructorMethodToCache>b__1() +38
ServiceStack.Text.ReflectionExtensions.CreateInstance(Type type) +64
ServiceStack.WebHost.Endpoints.Metadata.JsonMetadataHandler.CreateMessage(Type dtoType) +49
ServiceStack.WebHost.Endpoints.Metadata.BaseMetadataHandler.CreateResponse(Type type) +267
ServiceStack.WebHost.Endpoints.Metadata.BaseMetadataHandler.ProcessOperations(HtmlTextWriter writer, IHttpRequest httpReq, IHttpResponse httpRes) +688
ServiceStack.WebHost.Endpoints.Metadata.BaseMetadataHandler.Execute(HttpContext context) +267
ServiceStack.WebHost.Endpoints.Support.HttpHandlerBase.ProcessRequest(HttpContext context) +84
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +341
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +69

我认为，当给定请求的响应是IEnumerable时，元数据页的实现不应该崩溃，因为这是实现服务接口的一种完全有效的方法(而且比返回列表更可取)。如果它将IEnumerable视为返回类型，那么它应该足够智能，以便为samples节实例化一个列表。如果返回类型不可实例化，至少它不应该崩溃…