this my code it is not yet completed but i have one doubt i m getting one error that is "Employeer.Service1' does not implement interface member 'Employeer.IService1.GetEmployee()" . please help...

namespace Employeer
{
    // NOTE: If you change the interface name "IService1" here, you must also update the reference to "IService1" in Web.config.
    [ServiceContract]
    public interface IService1
    {

        [OperationContract]
          Employee GetEmployee();

    }
    [DataContract]
    public class Employee
    {
        [DataMember]
        public int Empid { get; set; }
        public string Name { get; set; }
        public string Address { get; set; }
        public string City { get; set; }
        public string State { get; set; }
        public string Employeerid { get; set; }
    }

}

namespace Employeer
{
    // NOTE: If you change the class name "Service1" here, you must also update the reference to "Service1" in Web.config and in the associated .svc file.
    public class Service1: IService1
    {
        String strConnection = ConfigurationManager.ConnectionStrings["MyConsString"].ConnectionString;
        SqlConnection conn = new SqlConnection(strConnection);
        public List<Employee> GetEmployee(int Employeerid)
        {
            List<Employee> objEmployees = new List<Employee>();
            {
                conn.Open();
                SqlCommand cmd = new SqlCommand("select * from Employeetable where Employeerid Like '%'+@Employeerid+'%'", conn);
                cmd.Parameters.AddWithValue("@Employeerid", Employeerid);
                SqlDataAdapter da = new SqlDataAdapter(cmd);
                DataTable dt = new DataTable();
                da.Fill(dt);


            }
        }