NullReferenceException: Object reference not set to an instance of an object

Hi,

I'm trying Match3 game. But I can't move characters in any direction. I've compared it to the original script. It doesn't look wrong. I couldn't find the error with Debug.Log. Since I am a beginner I cannot use the commands exactly. I don't speak English. Turkish videos are very bad. Can you help me, please?

Thanks. Bye.

Error Result 1:

Code (CSharp):

1. NullReferenceException: Object reference not set to an instance of an object
2. Tile.Select () (at Assets/Scripts/Board and Grid/Tile.cs:26)
3. Tile.OnMouseDown () (at Assets/Scripts/Board and Grid/Tile.cs:52)
4. UnityEngine.SendMouseEvents:DoSendMouseEvents(Int32)

Error Result 2:

Code (CSharp):

1. NullReferenceException: Object reference not set to an instance of an object
2. Tile.Select () (at Assets/Scripts/Board and Grid/Tile.cs:26)
3. Tile.OnMouseDown () (at Assets/Scripts/Board and Grid/Tile.cs:67)
4. UnityEngine.SendMouseEvents:DoSendMouseEvents(Int32)

---------------------------------------------------------------------------------------------------------------------

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using System.Collections.Generic;
4.  
5. public class Tile : MonoBehaviour
6. {
7.     private static Color selectedColor = new Color(.5f, .5f, .5f, 1.0f);
8.     private static Tile previousSelected = null;
9.  
10.     private SpriteRenderer render;
11.     private bool isSelected = false;
12.  
13.     private Vector2[] adjacentDirections = new Vector2[] { Vector2.up, Vector2.down, Vector2.left, Vector2.right };
14.  
15.     private bool matchFound = false;
16.  
17.     void Awake()
18.     {
19.         render = GetComponent<SpriteRenderer>();
20.     }
21.     private void Select()
22.     {
23.         isSelected = true;
24.         render.color = selectedColor;
25.         previousSelected = gameObject.GetComponent<Tile>();
26.         SFXManager.instance.PlaySFX(Clip.Select);
27.     }
28.  
29.     private void Deselect()
30.     {
31.         isSelected = false;
32.         render.color = Color.white;
33.         previousSelected = null;
34.     }
35.  
36.     void OnMouseDown()
37.     {
38.         if (render.sprite == null || BoardManager.instance.IsShifting)
39.         {
40.             return;
41.         }
42.  
43.         if (isSelected) // Is it already selected?
44.         {
45.             Deselect();
46.         }
47.  
48.         else
49.         {
50.             if (previousSelected == null) // Is it the first tile selected?
51.             {
52.                 Select();
53.             }
54.  
55.             else
56.             {
57.                 if (GetAllAdjacentTiles().Contains(previousSelected.gameObject))
58.                 {
59.                    SwapSprite(previousSelected.render);
60.                     previousSelected.ClearAllMatches();
61.                     previousSelected.Deselect();
62.                     ClearAllMatches();
63.                 }
64.                 else
65.                 {
66.                     previousSelected.GetComponent<Tile>().Deselect();
67.                     Select();
68.                 }
69.             }
70.         }
71.     }

 

Check if:

• Your SFXManager instance exists.
• The Clip your SFXManager is trying to play exists.

 

Thanks. I will try. I could not.

 

I'll erase everything and start over.