How to fix error ,"Unreachable code detected."

Question

I written a server program for  multiple client connection and I got above error in one method . I tried some options like "#pragma warning disable " but it doesn't works. Please give me suggestions to fix this. 

Thanks ! 

 

here is my code, 

 

public void startServer()

{

        int port = Convert.ToInt32(txtport.Text);

         string ipaddre = getip();

         IPAddress iP = IPAddress.Parse(ipaddre);

      TcpListener serverSocket = new TcpListener(iP, port);

      TcpClient clientSocket = default(TcpClient);

      int counter = 0;

      serverSocket.Start();

      AppendTxtdata("Server Started , Waiting for Client Connection");

      counter = 0;

      #pragma warning disable

      while (true)

      {

                counter += 1;

               clientSocket = serverSocket.AcceptTcpClient();

               AppendTxtdata(" >> " + "Client No:" + Convert.ToString(counter) + " Connected-- IP -                "+clientSocket.Client.RemoteEndPoint.ToString()+"");

               AppendTxtdata(Environment.NewLine);

               handleClient client = new connectSuccess.handleClient();

               client.startClient(clientSocket, Convert.ToString(counter));

      }

          AppendTxtdata("Data sent to Client No :" + Convert.ToString(counter));

         clientSocket.Close();

         serverSocket.Stop();

         AppendTxtdata(" >> " + "exit");

         #pragma warning restore

}