[NullReferenceException] Code works the way I want but still returns error

Hi, I'm trying to make an in-game log that actually runs the way I want it to but it returns an error in the console:

Code (CSharp):

1. NullReferenceException: Object reference not set to an instance of an object
2. log.newActivity (System.String activity) (at Assets/scripts/log.cs:22)
3. log.FixedUpdate () (at Assets/scripts/log.cs:32)

Here is the code for the script I'm using:

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.UI;
3. using System.Collections;
4. using System.Collections.Generic;
5.  
6. // http://answers.unity3d.com/questions/508268/i-want-to-create-an-in-game-log-which-will-print-a.html
7.  
8. public class log : MonoBehaviour {
9.  
10.     private int maxLines = 500;
11.     private Queue<string> queue = new Queue<string>();
12.  
13.     public Text logText;
14.  
15.     // adds new line to in game log at the bottom and retains a certain number of lines, defined by int maxLines
16.     public void newActivity(string activity) {
17.         if (queue.Count >= maxLines) {
18.             queue.Dequeue ();
19.         }
20.         queue.Enqueue(activity);
21.  
22.         logText.text = "";
23.         foreach (string st in queue) {
24.             logText.text = logText.text + "\n" + st;
25.         }
26.         Canvas.ForceUpdateCanvases ();
27.     }
28.  
29.     // debug method to test log functionality
30.     public void FixedUpdate() {
31.         if (Input.GetKeyDown ("f")) {
32.             newActivity ("An activity was added to the log.");
33.         }
34.     }
35. }
36.  

Attached are screenshots of the inspector showing that I have assigned a Text to the Log Text field in the inspector and of what happens when I run the script in game.





Thanks in advance for any help. If any more information is needed, I will provide it if I can.

 

Do you have multiple log scripts in your scene? That's what it looks like to me.

 

I feel so stupid... That was exactly right. Thank you so much.