c# - 服务栈 Hello World 教程 : exception EndpointHost. Config is null

Question

我正在关注来自 http://www.servicestack.net/ServiceStack.Hello/ 的服务堆栈“Hello World”教程.但是当我尝试启动 asp.net 应用程序时，它说“值不能为空。参数名称:EndpointHost.Config”。

完整的异常文本是:

[ArgumentNullException: Der Wert darf nicht NULL sein.
Parametername: EndpointHost.Config]

[ConfigurationErrorsException: ServiceStack: AppHost does not exist or has not been initialized. Make sure you have created an AppHost and started it with 'new AppHost().Init();' in your Global.asax Application_Start()]
   ServiceStack.WebHost.Endpoints.ServiceStackHttpHandlerFactory..cctor() in C:\src\ServiceStack\src\ServiceStack\WebHost.EndPoints\ServiceStackHttpHandlerFactory.cs:45

[TypeInitializationException: Der Typeninitialisierer für "ServiceStack.WebHost.Endpoints.ServiceStackHttpHandlerFactory" hat eine Ausnahme verursacht.]

[TargetInvocationException: Ein Aufrufziel hat einen Ausnahmefehler verursacht.]
   System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandle& ctor, Boolean& bNeedSecurityCheck) +0
   System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean fillCache) +86
   System.RuntimeType.CreateInstanceImpl(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean fillCache) +230
   System.Activator.CreateInstance(Type type, Boolean nonPublic) +67
   System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) +1051
   System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) +111
   System.Web.Configuration.HttpHandlerAction.Create() +57
   System.Web.Configuration.HandlerFactoryCache..ctor(HttpHandlerAction mapping) +19
   System.Web.HttpApplication.GetFactory(HttpHandlerAction mapping) +96
   System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) +125
   System.Web.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +93
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155

我的全局类是:

public class Global : System.Web.HttpApplication
    {
        /// Web Service Singleton AppHost
        public class InfoAppHost : AppHostBase
        {
            //Tell Service Stack the name of your application and where to find your web services
            public InfoAppHost()
                : base("Services", typeof(InfoService).Assembly) { }

            public override void Configure(Funq.Container container) { }
        }

        protected void Application_Start(object sender, EventArgs e)
        {
            //Initialize your application
            var appHost = new InfoAppHost();
            appHost.Init();
        }
    }

但它似乎永远不会被调用。 从主页编译示例项目工作正常 - 但我想按照主页中的示例进行操作。 有什么想法可以解决这个问题吗？

Answer 1

我删除了我的测试项目并再次尝试教程。

创建 Global.asax 文件时，我删除了整个类并在该文件中创建了另一个类 Global。似乎 Application_Start 从未在此类中被调用过。