error in wcf while opening the servicehost

Question

here is my code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.ServiceModel;


namespace EmployeeServiceHost
{
    class Program
    {
        static void Main()
        {
            using (ServiceHost host = new ServiceHost(typeof(EmployeeServices.EmployeeService)))
            {
                try
                {
                    host.Open();
                    Console.WriteLine("SERVER STARTED @: " + DateTime.Now.ToString());
                    Console.ReadLine();
                }
                catch(Exception er)
                {
                    Console.WriteLine(er.ToString());
                }
                finally
                {
                    host.Close();
                }
            }
        }
    }
}

and my app.config file

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

  <startup>

    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />

  </startup>

  <system.serviceModel>

    <services>

      <service name="EmployeeServices.EmployeeService" behaviorConfiguration="mexBehaviour">

        <endpoint address="EmployeeServices" binding="basicHttpBinding" contract="EmployeeServices.IEmployeeService"></endpoint>

        <host>

          <baseAddresses>

            <add baseAddress="http://localhost:8080/"/>

          </baseAddresses>

        </host>

      </service>

    </services>

    <behaviors>

      <serviceBehaviors>

        <behavior name="mexBehaviour">

          <serviceMetadata httpGetEnabled="true"/>

        </behavior>

      </serviceBehaviors>

    </behaviors>

  </system.serviceModel>

</configuration>

error i m getting is 

An unhandled exception of type 'System.ServiceModel.CommunicationObjectFaultedException' occurred in System.ServiceModel.dll

Additional information: The communication object, System.ServiceModel.ServiceHost, cannot be used for communication because it is in the Faulted state.

thanks in advance