need some help with ArgumentOutOfRangeException

Hi all, my script here is supposed to act as a store where players can buy and sell items.

 Store.js
 
 import System.Collections.Generic;
 
 var x : int;
 var cnt : int;
 
 var Player;
 var InventoryArray;
 var Inventory;
 var gold;
 
 var showGUI = false;
 var showarmorGUI = false;
 var showweaponsGUI = false;
 var showmiscGUI = false;
 
 var storeInventory = new List.<Item>();
 var Items : Items;
 
 var playerInventory;
 
 //private var playerInventory : InventoryList; // reference to the inventory
 
 function Start() {
 
 playerInventory = GameObject.Find("GUIElements").GetComponent("Inventory").inventory;
 for(cnt = 0; cnt < x; cnt++) { 
 storeInventory.Add(Items.StoreInventory1[cnt]); <<<ERROR OCCURS HERE
 }
 }
 
 function OnGUI() {
 if(showGUI == true) {
 
 GUI.Box(Rect(60,60,265,30),"Welcome, stranger. What can I get for you?");
 
 if(GUI.Button(Rect(60,90,60,45),"Armor")){
 showarmorGUI = true;
 }
 
 if(GUI.Button(Rect(60,135,60,45),"Weapons")){
 showweaponsGUI = true;
 }
 
 if(GUI.Button(Rect(60,180,60,45),"Misc")){
 showmiscGUI = true;
 }
 }


 Item.js
 
 enum Rarity{Common, Uncommon, Rare, Beastly, Insane, Epic, Legendary, Null}
 enum ArmorSlots{Head, Neck, Shoulders, Arms, Forearms, Hands, Torso, Waist, Legs, Feet, Null}
 enum JewelrySlots{Ear1, Ear2, Neck, Wrist, Finger1, Finger2, Finger3, Finger4, Finger5, Finger6, Finger7, Finger8, Finger9, Finger10, Null}
 enum WeaponSlot{Primary, Secondary, Ranged, Null}
 enum WeaponSlot2{Primary, Secondary, Ranged, Null}
 
 //var name1 : String;
 
 //var _value : int;
 var name2 : String;
 var description : String;
 var rarity : Rarity;
 var price : int;
 var armorSlot : ArmorSlots;
 var jewelSlot : JewelrySlots;
 var weaponSlot : WeaponSlot;
 var weaponSlot2 : WeaponSlot2;
 var curDura : int;
 var maxDura : int;
 var icon : Texture2D;
 
 function Start() {
 }    
   
 class Item {
 
 function Item(_name2,_description,_rarity,_armorSlot,_weaponSlot,_weaponSlot2,_jewelSlot,_curDura,_maxDura,_icon,_price) {
 
     item_name2 = _name2;
     item_description = _description;
     item_rarity = _rarity;
     item_armorSlot = _armorSlot;
     item_weaponSlot = _weaponSlot;
     item_weaponSlot2 = _weaponSlot2;
     item_jewelSlot = _jewelSlot;
     item_curDura = _curDura;
     item_maxDura = _maxDura;
     item_icon = _icon;
     item_price = _price;
     //item_rarity = Rarity.Rare;
     //item_maxdura = maxDura;
     //item_curdura = curDura;
 
     }
 
 }

 Items.js
 
 import System.Collections.Generic;
 
 var sellList : Item;
 var cnt : int;
 var StoreInventory1 = new List.<Item>();
 
 var my_item : Item; //= new Item("posion",360);
 var my_item1 : Item; //= new Item("posion",360);
 
 function Start() {
 StoreInventory1.Add(my_item);
 StoreInventory1.Add(my_item1);
 }

So as you can see the storeInventory list should be populated with everything contained in the StoreInventory1 list in Items.js However, I am getting an Argument is out of range exception on the line I marked in the Store.js script. Can anyone take a quick look and see what I might be doing wrong? Thank you!