Sharepoint REST/OData authentication

Hello to all,

I'm new to forum.

I have the following problem.

I have Sharepoint 2013 online(Office 365)/Office 2013/Visual Studio 2013.

I would like to implement a new solution for my users andconnect Outlook with Sharepoint List.

But because i'm new to Developing i start more simple with a new Project in VS 2013  in Visual C% with Console Application.

I have a custom list in Sharepoint online 2013 and i start to query from VS to get the data of the List.

My code is the following 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using ConsoleApplication1.ServiceReference1;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            TradersTrustIntranetTestDataContext dc =
                new TradersTrustIntranetTestDataContext(new Uri("https://myintranet/sites/test/_vti_bin/ListData.svc"));
            dc.Credentials = new NetworkCredential("myusername", "mypass", "mydomain");
            var result = from d in dc.Daily
                         select new
                         {
                             Title = d.Title,
                             Description = d.Description,
                             
                         };
            foreach (var d in result)
                Console.WriteLine(d);
        }
    }
}

When i start i get the following error

Can someone help me?