configureauth这个名称不存在

我正在尝试本教程http://httpjunkie.com/2013/311/adding-mvc-5-identity-to-an-existing-project/但是显示错误错误5名称’ConfigureAuth’不存在在当前的背景下
这是我的startup.cs类

using System; using System.Collections.Generic; using System.Linq; using System.Web; using Microsoft.Owin; using Owin; [assembly: OwinStartupAttribute(typeof(TicketSystem.Startup))] namespace TicketSystem { public partial class Startup { public void Configuration(IAppBuilder app) { ConfigureAuth(app); } } } 

这是Startup.Auth.cs

 using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using Microsoft.AspNet.Identity; using Microsoft.Owin; using Microsoft.Owin.Security.Cookies; using Owin; namespace TicketSystem.App_Start { public partial class Startup { // For more information on configuring authentication, please visit http://go.microsoft.com/fwlink/?LinkId=301864 public void ConfigureAuth(IAppBuilder app) { // Enable the application to use a cookie to store information for the signed in user app.UseCookieAuthentication(new CookieAuthenticationOptions { AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie, LoginPath = new PathString("/Account/Login") }); // Use a cookie to temporarily store information about a user logging in with a third party login provider app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie); // Uncomment the following lines to enable logging in with third party login providers //app.UseMicrosoftAccountAuthentication( // clientId: "", // clientSecret: ""); //app.UseTwitterAuthentication( // consumerKey: "", // consumerSecret: ""); //app.UseFacebookAuthentication( // appId: "", // appSecret: ""); //app.UseGoogleAuthentication(); } } } 

Answer 1

两个文件中都有不同的命名空间： namespace TicketSystem.App_Start和namespace TicketSystem 。 确保它们是相同的。 或者添加using语句：在startup.cs类中using TicketSystem.App_Start 。 如果查看示例，您将看到两个文件都使用相同的命名空间（ namespace MVC5FullApp ）