Unity 5 returns strange errors when compiling JavaScript code

Question

Hello! Please help! I have successfully made a level with a Terrain, a Rigidbody FPS Controller from Standard Assets -> Characters and some other GameObjects. I needed a saving system - so I have started to google file implementations in JavaScript. I have found some examples - but it returns compiler errors!

OS is Windows 10 64-bit. Unity version is 5.5.1f1 64-bit. Code editor is Visual Studio 2015, line endings corrected to Windows line endings. Language is JavaScript (UnityScript). Code I have used:

 #pragma strict
 
 import System;
 import System.IO;
 
 var Filename : String = "save.ini";
 private var rwfile;
 
 var x;
 var y;
 var z;

 var Player : GameObject;

 private var startTime : int;
 private var timer1 : int;
 
 function TimerSet() {startTime = Time.time;}
 
 function TimerUpdate() {
     timer1 = Time.time;
     if(timer1 > 60) {
         Debug.Log("Saving");
         Write();
         TimerSet();}}

 function WriterSetup() {
     Debug.Log("File Writer setup...");
     if (!File.Exists(Filename)) {
         rwfile = File.CreateText(Filename);}
     rwfile = OpenText(Filename);
     Debug.Log("File Writer configured sucsessfully");}
 
 function Write() {
     rwfile.open("w");
     x = Player.transform.position.x;
     y = Player.transform.position.y;
     z = Player.transform.position.z;
     rwfile.WriteLine(x);
     rwfile.WriteLine(y);
     rwfile.WriteLine(z);
     rwfile.close();}
 
 function Start() {Debug.Log("Saver Script Setup");
     WriterSetup();
     TimerSet();}
 
 function Update () {TimerUpdate();}

Click here to see my compiling errors in a bigger size

Answer 1

I have already solved this on Stack Overflow, thanks CNuts! Full working code:

 #pragma strict
 
 import System;
 import System.IO;
 
 var Filename : String = "save.ini";
 private var rwfile : StreamWriter;
 var x;
 var y;
 var z;
 var Player : GameObject;
 
 private var startTime : int;
 private var timer1 : int;
 
 function TimerSet() {startTime = Time.time;}
 
 function TimerUpdate() {
     timer1 = Time.time;
     if(timer1 > 60) {
         Debug.Log("Saving");
         Write();
         TimerSet();}}
 
 function WriterSetup() {
     Debug.Log("File Writer setup...");
     if (!File.Exists(Filename)) {
         rwfile = File.CreateText(Filename);}
     Debug.Log("File Writer configured sucsessfully");}
 
 function Write() {
     rwfile = File.CreateText(Filename);
     x = Player.transform.position.x;
     y = Player.transform.position.y;
     z = Player.transform.position.z;
     rwfile.WriteLine(x);
     rwfile.WriteLine(y);
     rwfile.WriteLine(z);
     rwfile.Close();}
 
 function Start() {Debug.Log("Saver Script Setup");
     WriterSetup();
     TimerSet();}
 
 function Update() {TimerUpdate();}

Unity 5 returns strange errors when compiling JavaScript code

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