[Unity] iOS build path issue

unity3d 카메라

• camera capture c#

using System.IO;
using UnityEngine;
using UnityEngine.UI;

public class CameraCapture : MonoBehaviour
{
    [SerializeField]
    private Button TakePhotoButton;
    public int fileCounter;
    public KeyCode screenshotKey;
    private Camera Camera
    {
        get
        {
            if (!_camera)
            {
                // _camera = Camera.main;
                _camera = Camera.main;
            }
            return _camera;
        }
    }
    private Camera _camera;
    void Awake()
    {
        TakePhotoButton.onClick.AddListener(TakePhoto);
    }

    private void TakePhoto()
    {
        Debug.Log("TakePhoto()" + fileCounter);
        Capture();
    }
    // private void LateUpdate()
    // {
    //     if (Input.GetKeyDown(screenshotKey))
    //     {
    //         Capture();
    //     }
    // }

    public void Capture()
    {
        RenderTexture activeRenderTexture = RenderTexture.active;
        RenderTexture.active = Camera.targetTexture;

        Camera.Render();

        Texture2D image = new Texture2D(Camera.targetTexture.width, Camera.targetTexture.height);
        image.ReadPixels(new Rect(0, 0, Camera.targetTexture.width, Camera.targetTexture.height), 0, 0);
        image.Apply();
        RenderTexture.active = activeRenderTexture;

        byte[] bytes = image.EncodeToPNG();
        Destroy(image);

        // Mac path : 
        // File.WriteAllBytes(Application.dataPath + "/Image/" + fileCounter + ".png", bytes);
        File.WriteAllBytes(Application.dataPath + fileCounter + ".png", bytes);
        fileCounter++;
    }
}

• ar camera manager로 카메라 접근

take photo button 클릭 시 나타나는 에러

TakePhoto()0
CameraCapture:TakePhoto()
UnityEngine.Events.UnityAction:Invoke()
UnityEngine.Events.UnityEvent:Invoke()
UnityEngine.EventSystems.EventFunction`1:Invoke(T1, BaseEventData)
UnityEngine.EventSystems.ExecuteEvents:Execute(GameObject, BaseEventData, EventFunction`1)
UnityEngine.EventSystems.StandaloneInputModule:ProcessTouchPress(PointerEventData, Boolean, Boolean)
UnityEngine.EventSystems.StandaloneInputModule:ProcessTouchEvents()
UnityEngine.EventSystems.StandaloneInputModule:Process()

(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

UnauthorizedAccessException: Access to the path "/private/var/containers/Bundle/Application/30C66757-76DB-4D45-A0BF-0774F1A5EAC8/yatop12.app/Data0.png" is denied.
  at System.IO.FileStream..ctor (System.String path, System.IO.FileMode mode, System.IO.FileAccess access, System.IO.FileShare share, System.Int32 bufferSize, System.Boolean anonymous, System.IO.FileOptions options) [0x00000] in <00000000000000000000000000000000>:0 
  at System.IO.File.Create (System.String path, System.Int32 bufferSize) [0x00000] in <00000000000000000000000000000000>:0 
  at System.IO.File.WriteAllBytes (System.String path, System.Byte[] bytes) [0x00000] in <00000000000000000000000000000000>:0 
  at CameraCapture.Capture () [0x00000] in <00000000000000000000000000000000>:0 
  at CameraCapture.TakePhoto () [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.Events.UnityAction.Invoke () [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.Events.UnityEvent.Invoke () [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.EventSystems.ExecuteEvents+EventFunction`1[T1].Invoke (T1 handler, UnityEngine.EventSystems.BaseEventData eventData) [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.EventSystems.ExecuteEvents.Execute[T] (UnityEngine.GameObject target, UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.ExecuteEvents+EventFunction`1[T1] functor) [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.EventSystems.StandaloneInputModule.ProcessTouchPress (UnityEngine.EventSystems.PointerEventData pointerEvent, System.Boolean pressed, System.Boolean released) [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.EventSystems.StandaloneInputModule.ProcessTouchEvents () [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.EventSystems.StandaloneInputModule.Process () [0x00000] in <00000000000000000000000000000000>:0 
UnityEngine.EventSystems.ExecuteEvents:Execute(GameObject, BaseEventData, EventFunction`1)
UnityEngine.EventSystems.StandaloneInputModule:ProcessTouchPress(PointerEventData, Boolean, Boolean)
UnityEngine.EventSystems.StandaloneInputModule:ProcessTouchEvents()
UnityEngine.EventSystems.StandaloneInputModule:Process()

-> applicationWillResignActive()
-> applicationDidEnterBackground()

• UnauthorizedAccessException 발생 시 persistentDataPath 사용

        Debug.Log(Application.persistentDataPath);
        File.WriteAllBytes(Application.persistentDataPath +"/Image" +fileCounter + ".png", bytes);
        fileCounter++;