Vuforia TrackableBehaviour 问题

Question

我正在观看一个 3 年前的 Vuforia 教程，它冻结了内容并对其进行了修改，而不是可能出现不舒服的位置。尽管我使用的是 TrackableBehaviour 并且它一直向我显示它不存在的错误，但代码看起来很好并且解释得很好，起初我以为我可能没有正确下载 Vuforia，但我认为情况并非如此了。如果有人知道问题是什么或替代解决方案，请告诉我。

c#

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Vuforia;

public class TIH : MonoBehaviour
{
    public GameObject picture; // Reference to the augmentable picture GameObject
    private TrackableBehaviour trackableBehaviour; // Reference to the TrackableBehaviour component
    private float touchTime; // Stores the time when the touch begins
    private bool isPictureFrozen = false; // Flag to check if the picture is frozen

    void Start()
    {
        // Get the TrackableBehaviour component of the augmentable picture
        trackableBehaviour = picture.GetComponentInParent<TrackableBehaviour>();
    }

    void Update()
    {
        if (Input.touchCount == 1) // Single touch
        {
            Touch touch = Input.GetTouch(0); // Get the touch
            if (touch.phase == TouchPhase.Began) // Touch started
            {
                touchTime = Time.time; // Store the time when the touch began
            }
            else if (touch.phase == TouchPhase.Ended && (Time.time - touchTime) >= 1.0f && !isPictureFrozen) // Touch ended, duration >= 1 second, and picture not frozen
            {
                FreezePicture(); // Freeze the picture
            }
        }
        else if (Input.touchCount == 2) // Two-finger touch
        {
            Touch touch1 = Input.GetTouch(0); // Get the first touch
            Touch touch2 = Input.GetTouch(1); // Get the second touch

            if (touch1.phase == TouchPhase.Moved || touch2.phase == TouchPhase.Moved) // One or both touches moved
            {
                float pinchDistance = Vector2.Distance(touch1.position, touch2.position); // Calculate the distance between the two touches
                float pinchDelta = (touch1.deltaPosition - touch2.deltaPosition).magnitude; // Calculate the change in distance between the two touches

                // Scale the picture based on the pinch gesture
                picture.transform.localScale *= 1 + pinchDelta * Time.deltaTime;
            }
        }
    }

    private void FreezePicture()
    {
        isPictureFrozen = true; // Set the flag to indicate the picture is frozen
        trackableBehaviour.enabled = false; // Disable the TrackableBehaviour component to stop tracking the augmentable image
    }
}

尝试重新下载 vuforia 包，下载另一个可能支持的 unity 版本，但没有任何效果。