I try to run c# in unity but I got errors:

• error CS0234: The type or namespace name Pipes' does not exist in the namespaceSystem.IO'. Are you missing an assembly reference?
• error CS0234: The type or namespace name Unix' does not exist in the namespaceMono'. Are you missing an assembly reference?

How I can to convert the code to something that run on Unity? code:

using System;
using System.IO;
using System.IO.Pipes;

using System.Net;
using System.Net.Sockets;
using System.Xml;
#if __MonoCS__
using Mono.Unix;
#endif

namespace Mumble {
    public class Mumble {
       protected NamedPipeClientStream pipe;
       protected StreamReader sr;
       protected StreamWriter sw;

       public Mumble() {
#if __MonoCS__
         Socket s = new Socket(AddressFamily.Unix, SocketType.Stream, 0);
         UnixEndPoint ue = new UnixEndPoint(Environment.GetFolderPath(System.Environment.SpecialFolder.Personal) + "/.MumbleSocket");
         s.Connect(ue);
         NetworkStream pipe = new NetworkStream(s);
#else
         pipe = new NamedPipeClientStream("Mumble");
         pipe.Connect();
#endif

         sr = new StreamReader(pipe);
         sw = new StreamWriter(pipe);
       }

       private bool OutputStringReply() {
         String line;
         while ((line = sr.ReadLine()) != "") {
          Console.WriteLine(line);
         }
         return true;
       }

       private bool ReadReply() {
         bool reply;
         using (XmlReader xr = XmlReader.Create(sr)) {
          xr.MoveToContent();
          xr.ReadToDescendant("succeeded");
          reply = xr.ReadElementContentAsBoolean();
         }
         return reply;
       }

       public bool Mute(bool state) {
         sw.WriteLine("<self mute='{0}' />", state);
         sw.Flush();

         return ReadReply();
       }

       public bool Deaf(bool state) {
         sw.WriteLine("<self deaf='{0}' />", state);
         sw.Flush();

         return ReadReply();
       }

       public bool Focus() {
         sw.WriteLine("<focus />");
         sw.Flush();

         return ReadReply();
       }

       public bool OpenUrl(String url) {
         Uri u;
         Uri.TryCreate(url, UriKind.Absolute, out u);
         sw.WriteLine("<url><href>{0}</href></url>", u);
         sw.Flush();

         return ReadReply();
       }

       public String QueryUrl() {
         sw.WriteLine("<url />");
         sw.Flush();

         String reply;
         using (XmlReader xr = XmlReader.Create(sr)) {
          xr.MoveToContent();
          xr.ReadToDescendant("href");
          reply = xr.ReadString();
         }
         return reply;
       }

/*
       public static void Main(String[] args) {
         Mumble m = new Mumble();
         m.Deaf(true);
       }

*/
    }
}