HTTP could not register URL http://+:8000/HelloWCF/. Your process does not have access rights to this namespace

I’m a beginner in WCF, but trying to improve my experience. And on the first step I faced the problem. I created the simplest WCF service. The listing of code: (all the code in one file)

using System;
using System.ServiceModel;

namespace EssentialWCF
{
    [ServiceContract]
    public interface IStockService
    {
        [OperationContract]
        double GetPrice(string ticker);
    }

    public class StockService : IStockService
    {
        public double GetPrice(string ticker)
        {
            return 94.85;
        }
    }

    class Service
    {
        static void Main(string[] args)
        {
            ServiceHost serviceHost = new ServiceHost(typeof(StockService),
                                                        new Uri("http://localhost:8000/HelloWCF"));

            serviceHost.AddServiceEndpoint(typeof(IStockService), new BasicHttpBinding());
            serviceHost.Open();

            Console.WriteLine("To continue press ENTER");

            serviceHost.Close();
        }
    }
}

That would be the service that give me a number via console. But debug give me the exception: (instead of number 🙂 )

HTTP could not register URL http://+:8000/HelloWCF/. Your process does not have access rights to this namespace.

Have you ever faced the same situation? I will be glad to see every advice.