Resolved AR Foudnation scrypt code errors

Hi,

I follow the tutorial at

but when I type code from that tutorials I get errors:

Code (CSharp):

1.  
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5. using UnityEngine.XR;
6. using UnityEngine.XR.ARFoundation;
7.  
8. [RequireComponent(typeof(ARTrackedImageManager))]
9. public class ImageTracking : MonoBehaviour
10. {
11.  
12.     [SerializeField]
13.     private GameObject[] placablePrefabs;
14.  
15.     private Dictionary<string, GameObject> spawnedPrefabs = new Dictionary<string, GameObject>();
16.     private ARTrackedImageManager trackedImageManager;
17.  
18.     private void Awake()
19.     {
20.         trackedImageManager = FindObjectOfType<ARTrackedImageManager>();
21.  
22.         foreach (GameObject prefab in placeablePrefabs)
23.         {
24.             GameObject newPrefab = Instantiate(prefab, Vector3.zero, Quaternion.identity);
25.             newPrefab.name = prefab.name;
26.             spawnedPrefabs.Add(prefab.name, newPrefab);
27.         }
28.     }
29.  
30.     private void OnEnable()
31.     {
32.         trackedImageManager.trackedImagesChanged += ImageChanged;
33.     }
34.  
35.     private void OnDisable()
36.     {
37.         trackedImageManager.trackedImagesChanged -= ImageChanged;
38.     }
39.  
40.     private void ImageChanged(ARTrackedImagesChangedEventArgs eventArgs)
41.     {
42.         foreach (ARTrackedImage trackedImage in eventArgs.added)
43.         {
44.             UpdateImage(trackedImage);
45.         }
46.         foreach (ARTrackedImage trackedImage in eventArgs.updated)
47.         {
48.             UpdateImage(trackedImage);
49.         }
50.         foreach (ARTrackedImage trackedImage in eventArgs.removed)
51.         {
52.             spawnedPrefabs[trackedImage.name].SetActive(false);
53.         }
54.     }
55.  
56.     private void UpdateImage(ARTrackedImage tackedImage)
57.     {
58.         string name = trackedImage.referenceImage.name;
59.         Vector3 position = trackedImage.transform.position;
60.  
61.         GameObject prefab = spawnedPrefabs[name];
62.         prefab.transform.position = position;
63.         prefab.SetActive(true);
64.  
65.         foreach (GameObject go in spawnedPrefabs.Values)
66.         {
67.             if (go.name != name)
68.             {
69.                 go.SetActive(false);
70.             }
71.         }
72.     }
73. }
74.  

This is errors:

Assets\ExampleAssets\Scripts\ImageTracking.cs(21,39): error CS0103: The name 'placeablePrefabs' does not exist in the current context

Assets\ExampleAssets\Scripts\ImageTracking.cs(57,23): error CS0103: The name 'trackedImage' does not exist in the current context

Assets\ExampleAssets\Scripts\ImageTracking.cs(58,28): error CS0103: The name 'trackedImage' does not exist in the current context


I realy don't know where is problem. Maybe I don't see type error or something like that.

Can someone help me to put this code to be functional?
It is not necessary to be same code but I need functionality like on video after code typing.

 

I solved this. It is type error. I type "tackedImage" insted "trackedImage".

All is fine. Sorry for bothering you! And Thank you.