The resource cannot be found

<%@ WebService Language="C#" CodeBehind="~/App_Code/WebService1.asmx.cs" Class="accsoft2018.App_code.WebService1" %>

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.Services;

namespace accsoft2018.App_Code

{

///

/// Summary description for WebService1

///

[WebService(Namespace = "http://tempuri.org/")]

[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]

[System.ComponentModel.ToolboxItem(false)]

// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.

// [System.Web.Script.Services.ScriptService]

public class WebService1 : System.Web.Services.WebService

{

[WebMethod]

public string HelloWorld()

{

return "Hello World";

}

}

}

 

THE OUTPUT: http://localhost:50138/WebService1.asmx

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: /WebService1.asmx

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3062.0

 

Please suggest me.