can anyone help me with this 3 errors about Augmented reality

Questions & Answers
1

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.XR;
using UnityEngine.XR.ARFoundation;

[RequireComponent(typeof(ARTrackedImageManager))]
public class NewBehaviourScript : MonoBehaviour
{
    [SerializeField]
    private GameObject[] placeablePrefabs;

    private Dictionary<string, GameObject> spawnedPrefabs = new Dictionary<string, GameObject>();
    private ARTrackedImageManager trackedImageManager;

    //var manager = gameObject.AddComponent<ARTrackedImageManager>();
    //manager.referenceLibrary = myLibrary;
    //manager.enabled = true;


   // private void Start()
   // {
        //trackedImageManager = GameObject.AddComponent<ARTrackedImageManager>();
        //  trackedImageManager.referenceLibrary = trackedImageMAnager.CreateRuntimeLibrary(runtimeImageLibrary);
        // trackedImageManager.enabled = true;
    //}

    private void Awake()
    {
        trackedImageMananger = FindObjectOfType<ARTrackedImageManager>();

        foreach (GameObject prefab in placeablePrefabs)
        {
            GameObject newPrefab = Instantiate(prefab, Vector3.zero, Quaternion.identity);
            newPrefab.name = prefab.name;
            spawnedPrefabs.Add(prefab.name, newPrefab);
        }
    }

    private void OnEnable()
    {
        trackedImageManager.trackedImagesChanged += ImageChanged;
    }

    private void OnDisable()
    {
        trackedImageManager.trackedImagesChanged -= ImageChanged;
    }

    private void ImageChanged(ARTrackedImagesChangedEventArgs eventArgs)
    {
        foreach (ARTrackedImage trackedImage in eventArgs.added)
        {
            UpdateImage(trackedImage);
        }
        foreach (ARTrackedImage trackedImage in eventArgs.update)
        {
            UpdateImage(trackedImage);
        }
        foreach (ARTrackedImage trackedImage in eventArgs.removed)
        {
            spawnedPrefabs[trackedImage.name].SetActive(false);
        }
    }

    private void UpdateImage(ARTrackedImage trackedImage)
    {
        string name = trackedImage.referenceImage.name;
        Vector3 position = trackedImage.transform.position;

        GameObject prefab = spawnedPrefabs[name];
        prefab.transform.position = position;
        prefab.SetActive(true);

        foreach (GameObject go in spawnedPrefabs.Valeus)
        {
            if (go.name != name)
            {
                go.SetActive(false);
            }
        }
    }
}

The errors:

Assets\Prefab\NewBehaviourScript.cs(30,9): error CS0103: The name ‘trackedImageMananger’ does not exist in the current context

Assets\Prefab\NewBehaviourScript.cs(56,59): error CS1061: ‘ARTrackedImagesChangedEventArgs’ does not contain a definition for ‘update’ and no accessible extension method ‘update’ accepting a first argument of type ‘ARTrackedImagesChangedEventArgs’ could be found (are you missing a using directive or an assembly reference?)

Assets\Prefab\NewBehaviourScript.cs(75,50): error CS1061: ‘Dictionary’ does not contain a definition for ‘Valeus’ and no accessible extension method ‘Valeus’ accepting a first argument of type ‘Dictionary’ could be found (are you missing a using directive or an assembly reference?)

2

Hello.

First, you should investigate about twhat this error means before coming to Unity Answers.

Second, your errors are not related with Augmented reality, there are just scripting errors, make a good question title if want the right persons to read them.

Read the error code… its saying what is happening…

Assets\Prefab\NewBehaviourScript.cs(30,9): error CS0103: The name ‘trackedImageMananger’ does not exist in the current context

The code error says: In the script called NewBehaviourScript at line 30 the variable called trackedImageMananger does not extist.

You need to declarate ir first!

Now try tu understand all your errors and fix them

Bye!