“DefaultApi”命名的路线已经路线集合 [英] A route named 'DefaultApi' is already in the route collection

问题描述

这可问题似乎重复但这是略有不同。
在SO所有其他问题，我已经注意到，他们已经注册了多个路线。但在我的情况下，我只有一个途径。

我创建asp.net的WebAPI（框架4.5），并在的RegisterRoutes只有一个途径（）方法 -

 公共静态无效的RegisterRoutes（RouteCollection路线）
    {
        routes.IgnoreRoute（{}资源个.axd / {*} PATHINFO）;        routes.MapRoute（
            名称：DefaultApi
            网址：休息/ {}控制器/（编号），
            默认：新{ID = UrlParameter.Optional}
        ）;    }
 

那为什么抛出错误？

 名为DefaultApi路由已经路线收藏。路线名称必须是唯一的。参数名：名称
 

解决方案

好吧，我解决它基于user3038092回复。相反的路线集合中添加它，我加入它HttpConfiguration

  config.Routes.MapHttpRoute（
            名称：DefaultApi
            routeTemplate：休​​息/ {}控制器/（编号），
            默认：新{ID = RouteParameter.Optional}
        ）;
 

和它的工作。

This question may seems duplicate but this is slightly different. In all other question in SO I had noticed that they have multiple routes registered. but in my case I have just one route.

I am creating asp.net webapi (framework 4.5) and have just one route in RegisterRoutes() method -

    public static void RegisterRoutes(RouteCollection routes)
    {
        routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

        routes.MapRoute(
            name: "DefaultApi",
            url: "rest/{controller}/{id}",
            defaults: new { id = UrlParameter.Optional }
        );

    }

Then why is it throwing error?

A route named 'DefaultApi' is already in the route collection. Route names must be unique. Parameter name: name

解决方案

Fine, I resolved it based on the reply by user3038092. Instead of adding it in the route collection, I added it in HttpConfiguration

        config.Routes.MapHttpRoute(
            name: "DefaultApi",
            routeTemplate: "rest/{controller}/{id}",
            defaults: new { id = RouteParameter.Optional }
        );

And it worked.

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