Inventory Add Item Textures Don't Show?

I have an inventory and my InventoryAddItem script doesn’t correctly connect to my InventoryGUI script:

InventoryAddItem:

#pragma strict
    //Private
    var TheInventory : InventoryGUI;
    var TheTextures : PlayerInventory;
    var ArrayGrid = 0;
    
    static var InventoryNewItemAdded = -1;
    
    //Icons
    var BlankIcon : Texture;
    var TheNewItem : Texture;
    
    function Start () 
    {
       TheInventory = GetComponent(InventoryGUI);
       TheTextures = GetComponent(PlayerInventory);
    }
    
    function newItem () 
    {
       if (InventoryAddItem.InventoryNewItemAdded > -1)
       {
          TheNewItem = TheTextures.itemTexture[InventoryAddItem.InventoryNewItemAdded];
          if (ArrayGrid < TheInventory.Grids.length)
          {
             if (TheInventory.Grids[ArrayGrid].image == BlankIcon)
             {
                TheInventory.Grids[ArrayGrid].image = TheNewItem;
                ArrayGrid = 0;
                InventoryAddItem.InventoryNewItemAdded = -1;
             }
             else if (TheInventory.Grids[ArrayGrid].image != BlankIcon)
             {
                ArrayGrid += 1;
             }
          }
       }
    }

InventoryGUI:

#pragma strict
//Private Variables
private var InventoryOn = false;
private var scrollBarChopGrid : Vector2 = Vector2.zero;
private var GridValue : float = -1;
var myskin : GUISkin;

//GUI Pos/Size
var NamePosition : Vector2 = new Vector2(30,30);
var NameSize : Vector2 = new Vector2(250,250);
var GridPosition : Vector2 = new Vector2(10,5);
var GridSize : Vector2 = new Vector2(323,410);
var ClosePosition : Vector2 = new Vector2(312,5);
var CloseSize : Vector2 = new Vector2(35,35);
var ScrollPosition : Vector2 = new Vector2(312,5);
var ScrollSize : Vector2 = new Vector2(355,500);
var WindowPosition : Vector2 = new Vector2(0,0);
var WindowSize : Vector2 = new Vector2(360,360);
var DragWindowPosition : Rect = Rect(0,0,WindowSize.x,WindowSize.y);

//Textures
var InventoryWindow : Texture;
var CloseIcon : Texture;
var Grids : GUIContent[];

function Update () 
{
   var AddingNewItem : InventoryAddItem = GetComponent(InventoryAddItem);
   //On or Off
   if (Input.GetKeyUp ("i"))
   {
   
      if (InventoryOn == false)
      {
         InventoryOn = true;
      }
      else if (InventoryOn == true)
      {
         InventoryOn = false;
         scrollBarChopGrid.y = 0;
      }
   }
   //Window Drag Fix
   if (Input.GetKey("left shift"))
   {
      if (Input.GetKeyDown("i"))
      {
         DragWindowPosition.x = 0;
         DragWindowPosition.y = 0;
         
      }
   }
   AddingNewItem.newItem();
}

function OnGUI()
{
   GUI.skin = myskin;
   if (InventoryOn == true)
   {
      DragWindowPosition = GUI.Window(0, DragWindowPosition, DoMyWindow, "");
   }
}

function DoMyWindow(windowID : int)
{
   if (InventoryOn == true)
   {
      GUI.BeginGroup(new Rect(WindowPosition.x, WindowPosition.y, WindowSize.x, WindowSize.y), InventoryWindow);
         //Name
         GUI.Label(Rect(NamePosition.x, NamePosition.y, NameSize.x, NameSize.y), "Your Inventory");
      
         //Close Button
         if (GUI.Button(Rect(ClosePosition.x, ClosePosition.y, CloseSize.x, CloseSize.y), CloseIcon))
         {
            InventoryOn = false;
         }
         //Scroll Bar
		scrollBarChopGrid = GUI.BeginScrollView(Rect (ScrollPosition.x, ScrollPosition.y, ScrollSize.x, ScrollSize.y), scrollBarChopGrid, Rect(0,0,0,420));
			// Grid
			GridValue = GUI.SelectionGrid(Rect(GridPosition.x, GridPosition.y, GridSize.x, GridSize.y), GridValue, Grids, 5);
         GUI.EndScrollView();
         
         //Dragable Window
         GUI.DragWindow (Rect (WindowPosition.x, WindowPosition.y, 10000, 40));
      GUI.EndGroup();
         
   }
}

Does anyone know why I can’t see the inventory item texture in my inventory?

Play with your scroll-bar size and position to make the grids and scroll-bar visible.

I just assigned all the variables and it all worked fine.

Make sure in your Inventory Add Item you have: Your blank icon variable set

In your InventoryGUI you have that same blank icon on all the empty slots. Also change your scroll-bar options.

In your PlayerInventory make sure you have set the item textures correctly for example -

ID 0 - Is the apple, and the 0 value in the array is an apple.

Hope this helps!