trying to write and read Customer collection to MSMQ - getting error message "Target type array is missing. The target type array must be set in order to deserialize the XML-formatted message."

using System;
using System.Collections.Generic;
using System.Text;
using System.Messaging;
using System.Reflection;
using System.Collections;
using System.Runtime.Serialization;
using System.Xml.Serialization;

namespace MSMQ
{
    public class Program
    {
        #region properties

        static Type[] typeHandler = new Type[2];
        static string path = @".\Private$\Myqueue";
        
        #endregion

        static void Main(string[] args)
        {
            System.Messaging.XmlMessageFormatter xmlFormatter = new XmlMessageFormatter();
            MessageQueue queue = new MessageQueue();
            Message message = new Message();
            Customer[] customers = null;
            MessageQueue recieverQueue = null;

            typeHandler[0] = typeof(Program.Customers);
            //typeHandler[1] = typeof(Program.Customer);
            typeHandler[1] = typeof(string);

            queue.Path = path;
            
            if (MessageQueue.Exists(path))
            {
                MessageQueue.Delete(path);
            }

            customers = Customers.Get();

            //preparing message body and formatting
            message.Body = customers;
            message.Formatter = new XmlMessageFormatter();
            xmlFormatter.TargetTypes = typeHandler;

            //xmlFormatter.Write(message, customers);

            //create queue
            queue = MessageQueue.Create(path);

            //sending message to queue
            queue.Formatter = new XmlMessageFormatter(new Type[] { typeof(Customers) });
            queue.Send(customers);



            //****

            recieverQueue = new MessageQueue(path);
            recieverQueue.Formatter = new XmlMessageFormatter(new Type[] { typeof(Customers) });

            //recieverQueue.Formatter = new XmlMessageFormatter(typeHandler);

            Message recievedMessage = recieverQueue.Receive();
            recievedMessage.Formatter = new XmlMessageFormatter();
            xmlFormatter.TargetTypes = typeHandler;
            
            Customers myCustomers = (Customers)recievedMessage.Body;

            foreach (Customer customer in myCustomers)
            {
                Console.WriteLine("Dear Customer, \n {0} {1} \n\n welcome to the MSMQ world your zipcode is {2}", customer.FirstName, customer.LastName, customer.ZipCode);
            }
            Console.ReadLine();
        }

        [Serializable]
        
        [XmlRoot(DataType = "string", ElementName = "Customer")]
        public class Customer
        {
            public Customer()
            {

            }


            public Customer(int iD,string fn, string ln, int zc)
            {
                this.ID = iD;
                this.FirstName = fn;
                this.LastName = ln;
                this.ZipCode = zc;
            }

            int id;
            string firstname;
            string lastname;
            int zipcode;

            [XmlElement(DataType = "int", ElementName = "CustomerID")]
            public int ID
            {
                get { return id; }
                set { id = value; }
            }


            [XmlElement(DataType="string", ElementName="CustomerFirstName")]
            public string FirstName
            {
                get { return firstname;}
                set { firstname = value; }
            }

            [XmlElement(DataType = "string", ElementName = "CustomerLastName")]
            public string LastName
            {
                get { return lastname; }
                set { lastname = value; }
            }

            [XmlElement(DataType = "int", ElementName = "CustomerZipcode")]
            public int ZipCode
            {
                get { return zipcode; }
                set { zipcode = value; }
            }

        }

        [Serializable]
        [XmlRoot(DataType="string", ElementName="Customers")]
        public class Customers  : IEnumerable
        {

            static Customer[] customers = new Customer[2];
            public Customers()
            {
                
            }

            public static Customer[] Get()
            {
                customers = new Customer[2] { new Customer(1,"Vishal", "Singla", 55423), new Customer(2,"Ashish", "Singla", 55422) };
                return customers;
            }

            IEnumerator IEnumerable.GetEnumerator()
            {
                return (customers as IEnumerable).GetEnumerator();
            }

            public Customers Add(object obj)
            {
                return new Customers();
            }
        }
    }
}