JS Argument out of range

Getting this error: ArgumentOutOfRangeException: Argument is out of range. Parameter name: index

Been trying to get this to work for a few days now. Heres my code: This is my Stage class

 import System.Collections.Generic;
 
 class Stage
 {
     var controlArray: String[];
     var taskName: String[];
     var taskStatus: Texture2D[];
     var PC: boolean;
     var arrowArray: GameObject[];
 }

and this is my script that handles actually putting it up on the GUI

 static var Stages : List.<Stage> = new List.<Stage>(22);

 function Start() {
   var Stage0 = new Stage();
   Stage0.controlArray = new String[2];
   Stage0.arrowArray = new GameObject[4];
   Stage0.controlArray[0] = "";
   Stage0.PC = false;
   Stage0.arrowArray[0] = null;

   //...truncated

   var Stage16 = new Stage();
   Stage16.controlArray = new String[2];
   Stage16.taskName = new String[6];
   Stage16.taskStatus = new Texture2D[6];
   Stage16.arrowArray = new GameObject[4];
   Stage16.controlArray[0] = "";
   Stage16.taskName[0] = "findTheWaterCooler";
   Stage16.taskName[1] = "returnToYourDesk";
   Stage16.taskName[2] = "dropToTheGround";
   Stage16.taskName[3] = "coverUnderTheDesk";
   Stage16.taskName[4] = "holdDuringTheEarthquake";
   Stage16.taskName[5] = "dustYourselfOff";
   Stage16.taskStatus[0] = Resources.Load("check_box_checked");
   Stage16.taskStatus[1] = Resources.Load("check_box_failed");
   Stage16.taskStatus[2] = Resources.Load("check_box_checked");
   Stage16.taskStatus[3] = Resources.Load("check_box_checked");
   Stage16.taskStatus[4] = Resources.Load("check_box_checked");
   Stage16.taskStatus[5] = Resources.Load("check_box_empty");
   Stage16.PC = false;
   Stage16.arrowArray[0] = null;

   Stages[0] = Stage0;

   //...truncated

   Stages[21] = Stage21;
 }

 function OnGUI() {
     GUI.skin=skin;
     for (var i: int = 0; i < 22; i++)
     {
         if (GC.GetComponent(NewGC).stage==i) {
             Debug.Log(Stages[i].taskName[0]);
             if ((Stages[i].taskName[0]!=null)&&(Stages[i].taskStatus[0]!=null)) {
                 showTask(Stages[i].taskName[0], Stages[i].taskStatus[0], 1);
             }

             //...truncated

             if ((Stages[i].taskName[5]!=null)&&(Stages[i].taskStatus[5]!=null)) {
                 showTask(Stages[i].taskName[5], Stages[i].taskStatus[5], 6);
             }
         }
     }
 }

ArgumentOutOfRangeException: Argument is out of range. Parameter name: index System.Collections.Generic.List`1[Stage].get_Item (Int32 index) (at /Applications/buildAgent/work/c514da0c8183631c/mcs/class/corlib/System.Collections.Generic/List.cs:633) tasks.OnGUI () (at Assets/Scripts/tasks.js:285)

Its having a problem at line 46 with 'Debug.Log(Stages[i].taskName[0]);' particularly the Stages[i]

What am I doing wrong??