Importing gmail contacs using Oauth2

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Please FInd the below Code .. m getting exception" Execution of authentication 
request returned unexpected result: 404 "
please help me to fix it 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Google.GData.Extensions.Apps;
using Google.GData.Client;
using Google.Contacts;
public partial class _Default : System.Web.UI.Page
{
    private static string clientId;
    private static string clientSecret;
    private static string domain;

    private static string applicationName = "Test-OAuth2";

    // Installed (non-web) application
    private static string redirectUri = "http://localhost:51598/WebSite1/Default2.aspx" ;

    // Requesting access to Contacts API and Groups Provisioning API
    private static string scopes = "https://www.google.com/m8/feeds/";

    protected void Page_Load(object sender, EventArgs e)
    {
        clientId = "51382749591-acdara9kbhlrvo529ivnhbigsvd0m0rb.apps.googleusercontent.com";
        clientSecret = "IZGxIUoGpGjBqYFqDpNabicv";
        domain = "";

        OAuth2Parameters parameters = new OAuth2Parameters()
        {
            ClientId = clientId,
            ClientSecret = clientSecret,
            RedirectUri = redirectUri,
            Scope = scopes
        };

        string url = OAuthUtil.CreateOAuth2AuthorizationUrl(parameters);
        Console.WriteLine("Authorize URI: " + url);
        parameters.AccessCode = Console.ReadLine();

        OAuthUtil.GetAccessToken(parameters);

        // Testing OAuth 2.0 with a Request-based library
        RunContactsSample(parameters);


    }
    private static void RunContactsSample(OAuth2Parameters parameters)
    {
        try
        {
            RequestSettings settings = new RequestSettings(applicationName, parameters);
            ContactsRequest cr = new ContactsRequest(settings);

            Feed<Contact> f = cr.GetContacts();
            foreach (Contact c in f.Entries)
            {
                Console.WriteLine(c.Name.FullName);
            }
        }
        catch (Exception a)
        {
            Console.WriteLine("A Google Apps error occurred.");
            Console.WriteLine();
            //Console.WriteLine("Error code: {0}", a.ErrorCode);
            //Console.WriteLine("Invalid input: {0}", a.InvalidInput);
            //Console.WriteLine("Reason: {0}", a.Reason);
        }
    }
}

Original issue reported on code.google.com by [email protected] on 30 May 2015 at 6:17