resource cannot be found issue

Question

I have an entity framework app I am rehabilitating.
all the routes work just the one labeled details fails with the error below.

Server Error in '/' Application.
The resource cannot be found.
Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly.

Requested URL: /Survey/Details/3

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4330.0

see image below the web page is there I cannot figure out how to debug this issue ?

Answer 1

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;

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

            routes.MapRoute(
                 "CountriesList",
                 "Location/Countries/List/{regionID}",
                 new { controller = "Location", action = "CountryList", regionID = UrlParameter.Optional }
            );

            routes.MapRoute(
                 "SubnationsList",
                 "Location/Subnations/List/{countryID}",
                 new { controller = "Location", action = "SubnationList", countryID = UrlParameter.Optional }
            );

            routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                //defaults: new { controller = "User", action = "Details", id = 191 }
                defaults: new { controller = "User", action = "Details", id = 4 }
                //defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
            );
        }
    }
}

Answer 2

Are you sure the namespace for the view Details is viable and namespaces in the view are viable? What about in JavaScript pathing used by the view is viable?

Answer 3

Hi @rob m ,
As far as I think, the most common problem of 404 is your request URL isn't match the route url.
If it is convenient, can you provide your routing configuration (RouteConfig)? By default,the url is like this

"{controller}/{action}/{id}"  

Through the information you provide, your request url is this:

/User/Details/3  

By the way,you should note wheather there are spelling errors.

Best regards,
Yijing Sun

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