How to fix Error BCE0043: Unexpected token: Network on Network.js for network script

I am trying to implement multiplayer into a game I have created but I am encountering this error whenever I try compiling it.

Here is the code

 var gameName:string = "CGCookie_Tutorial_Networking";
 
 private var btnX:float;
 private var btnY:float;
 private var btnW:float;
 private var btnH:float;
 
 function Start(){
     btnX = Screen.width = 0.5;
     btnX = Screen.height = 0.5;
     btnX = Screen.width = 0.1;
     btnX = Screen.width = 0.1;
 }
 
 function startServer()
     Network.InitalizeServer(32, 25001, !Network.HavePublicAddress);
     MasterServer.RegisterHost(gameName, "Tutorial Game Name", "This is a tutorial game");
 }
 
 function refreshHostlist(){
     MasterServer.RequestHostList(gameName);
     yield WaitForSeconds(1.5);
     Debug.Log(MasterServer.PolHostlist().Length);
 }
 
 
 
 
 //Messages
 function OnServerInitialized(){
     Debug.Log("Server initialized!");
 }
 
  function OnMasterServerEvent(mse:MasterServerEvent){
     if(mse == MasterServerEvent.RegistrationSucceeded){
         Debug.Log("Registered Server!");
     }
 }
 
 function OnGUI(){
     if(GUI.Button(Rect(btnX, btnY, btnW, btnH), "Start Server")){
         Debug.Log("Stating Server");
         startServer();
     }
     
     if(GUI.Button(Rect(btnX, btnY * 1.2 + btnH, btnW, btnH), "Refresh Hosts")){
         Debug.Log("Refreshing");
     }
 }

I am following this tutorial http://vimeo.com/33996023#