Updating Labels Through Script - Null Errors - SOLVED

[SeaCliffInteractive]

Hey all,

I'm somewhat new to NGUI and I'm having trouble updating the text of an existing label with a variable through script. I'm building a unit purchase menu and want to display how many units are currently owned. This variable is housed in a different script and I can't seem to access due to some null errors. Lines 14 and 40 are the ones receiving the errors.

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class PurchaseManager : MonoBehaviour
5. {
6.  
7.         public UILabel countLabel;
8.         internal string countLabelString;
9.  
10.  
11.         void Start ()
12.         {
13.                 countLabel.text = "hello";
14.  
15.         }
16.        
17.  
18.         public void PurchaseAuxilia() // Buy an Auxilia
19.         {
20.                 if (WorldMapManager.stockedGold >= 50)
21.                 {
22.                         WorldMapManager.stockedGold -= 50;
23.                         WorldMapManager.AuxiliaUnits += 1;
24.                         countLabelString = WorldMapManager.AuxiliaUnits.ToString();
25.                         countLabel.text = "countLabelString";
26.                 }
27.  
28.         }

Thanks in advance!