Help With My XML Saving/Loading Script

So I got most of this script off of the wiki, and I only slightly modified it.

I keep getting the following error message:

Assets/saver.js(113,48): BCE0023: No appropriate version of ‘UnityEngine.Application.LoadLevel’ for the argument list ‘()’ was found.

Here is the code…

import System;
import System.Collections;
import System.Xml;
import System.Xml.Serialization;
import System.IO;
import System.Text;

// Anything we want to store in the XML file, we define it here
class DemoData
{
    var x : float;
    var y : float;
    var z : float;
	var loadedLevelName : float;
    var name : String;
}

// UserData is our custom class that holds our defined objects we want to store in XML format
 class UserData
 {
    // We have to define a default instance of the structure
   public var _iUser : DemoData = new DemoData();
    // Default constructor doesn't really do anything at the moment
   function UserData() { }
}

//public class GameSaveLoad: MonoBehaviour {

// An example where the encoding can be found is at
// http://www.eggheadcafe.com/articles/system.xml.xmlserialization.asp
// We will just use the KISS method and cheat a little and use
// the examples from the web page since they are fully described

// This is our local private members
private var _Save : Rect;
private var _Load : Rect;
private var _SaveMSG : Rect;
private var _LoadMSG : Rect;
//var _ShouldSave : boolean;
//var _ShouldLoad : boolean;
//var _SwitchSave : boolean;
//var _SwitchLoad : boolean;
private var _FileLocation : String;
private var _FileName : String = "SaveData.xml";

//public GameObject _Player;
var _Player : GameObject;
var _PlayerName : String = "Joe Schmoe";

private var myData : UserData;
private var _data : String;

private var VPosition : Vector3;

// When the EGO is instansiated the Start will trigger
// so we setup our initial values for our local members
//function Start () {
function Awake () { 
      // We setup our rectangles for our messages
      _Save=new Rect(10,80,100,20);
      _Load=new Rect(10,100,100,20);
      _SaveMSG=new Rect(10,120,200,40);
      _LoadMSG=new Rect(10,140,200,40);
       
      // Where we want to save and load to and from
      _FileLocation=Application.dataPath;
     
         
      // we need soemthing to store the information into
      myData=new UserData();
   }
   
function Update () {}
   
function OnGUI()
{   

   // ***************************************************
   // Loading The Player...
   // **************************************************       
   if (GUI.Button(_Load,"Load")) {
     
      GUI.Label(_LoadMSG,"Loading from: "+_FileLocation);
      // Load our UserData into myData
      LoadXML();
      if(_data.ToString() != "")
      {
         // notice how I use a reference to type (UserData) here, you need this
         // so that the returned object is converted into the correct type
         //myData = (UserData)DeserializeObject(_data);
         myData = DeserializeObject(_data);
         // set the players position to the data we loaded
         VPosition=new Vector3(myData._iUser.x,myData._iUser.y,myData._iUser.z);             
         _Player.transform.position=VPosition;
         // just a way to show that we loaded in ok
         Debug.Log(myData._iUser.name);
      }
   
   }
   
   // ***************************************************
   // Saving The Player...
   // **************************************************   
   if (GUI.Button(_Save,"Save")) {
           
      GUI.Label(_SaveMSG,"Saving to: "+_FileLocation);
      //Debug.Log("SaveLoadXML: sanity check:"+ _Player.transform.position.x);
     
      myData._iUser.x = _Player.transform.position.x;
      myData._iUser.y = _Player.transform.position.y;
      myData._iUser.z = _Player.transform.position.z;
	  myData._iUser.name = _PlayerName;   
	  myData._iUser = Application.LoadLevel();
      // Time to creat our XML!
      _data = SerializeObject(myData);
      // This is the final resulting XML from the serialization process
      CreateXML();
      Debug.Log(_data);
   }


}
   
/* The following metods came from the referenced URL */
//string UTF8ByteArrayToString(byte[] characters)
function UTF8ByteArrayToString(characters : byte[] )
{     
   var encoding : UTF8Encoding  = new UTF8Encoding();
   var constructedString : String  = encoding.GetString(characters);
   return (constructedString);
}

//byte[] StringToUTF8ByteArray(string pXmlString)
function StringToUTF8ByteArray(pXmlString : String)
{
   var encoding : UTF8Encoding  = new UTF8Encoding();
   var byteArray : byte[]  = encoding.GetBytes(pXmlString);
   return byteArray;
}
   
   // Here we serialize our UserData object of myData
   //string SerializeObject(object pObject)
function SerializeObject(pObject : Object)
{
   var XmlizedString : String  = null;
   var memoryStream : MemoryStream  = new MemoryStream();
   var xs : XmlSerializer = new XmlSerializer(typeof(UserData));
   var xmlTextWriter : XmlTextWriter  = new XmlTextWriter(memoryStream, Encoding.UTF8);
   xs.Serialize(xmlTextWriter, pObject);
   memoryStream = xmlTextWriter.BaseStream; // (MemoryStream)
   XmlizedString = UTF8ByteArrayToString(memoryStream.ToArray());
   return XmlizedString;
}

   // Here we deserialize it back into its original form
   //object DeserializeObject(string pXmlizedString)
function DeserializeObject(pXmlizedString : String)   
{
   var xs : XmlSerializer  = new XmlSerializer(typeof(UserData));
   var memoryStream : MemoryStream  = new MemoryStream(StringToUTF8ByteArray(pXmlizedString));
   var xmlTextWriter : XmlTextWriter  = new XmlTextWriter(memoryStream, Encoding.UTF8);
   return xs.Deserialize(memoryStream);
}

   // Finally our save and load methods for the file itself
function CreateXML()
{
   var writer : StreamWriter;
   //FileInfo t = new FileInfo(_FileLocation+"\\"+ _FileName);
   var t : FileInfo = new FileInfo(_FileLocation+"/"+ _FileName);
   if(!t.Exists)
   {
      writer = t.CreateText();
   }
   else
   {
      t.Delete();
      writer = t.CreateText();
   }
   writer.Write(_data);
   writer.Close();
   Debug.Log("File written.");
}
   
function LoadXML()
{
   //StreamReader r = File.OpenText(_FileLocation+"\\"+ _FileName);
   var r : StreamReader = File.OpenText(_FileLocation+"/"+ _FileName);
   var _info : String = r.ReadToEnd();
   r.Close();
   _data=_info;
   Debug.Log("File Read");
}

//}

Can somebody please tell me whats wrong with my modifications to this script?

your calling loadlevel but you don’t tell it what level to load

Actually he is setting the value of myData._iUser to the level name, not loading the level, but setting its value so the code should be:

Then later when he wants to load that level, then he would use: