The script don't inherit a native class that can manage a script.

Hi!

soo this is my code

 using UnityEngine;
 using UnityEngine.InputSystem;
 using UnityEngine.EventSystems;
 
 public class MouseLook : MonoBehaviour
 {
     public float mouseSensitivity = 100f;
     public Transform playerBody;
 
     float xRotation;
 
     void Start()
     {
         //Cursor.lockState = CursorLockMode.Locked;
     }
 
     // Update is called once per frame
     void Update()
     {
         float mouseX = 0;
         float mouseY = 0;
 
         /*
         if(Mouse.current != null)
         {
             mouseX = Mouse.current.delta.ReadValue().x;
             mouseY = Mouse.current.delta.ReadValue().y;
         }
         if (Gamepad.current != null)
         {
             mouseX = Gamepad.current.rightStick.ReadValue().x;
             mouseY = Gamepad.current.rightStick.ReadValue().y;
         }
         //float mouseX = Input.GetAxis("Mouse X");
         //float mouseY = Input.GetAxis("Mouse Y");
         */
         if (Touchscreen.current.touches.Count == 0)
             return;
 
         if (EventSystem.current.IsPointerOverGameObject(Touchscreen.current.touches[0].touchId.ReadValue()))
         {
             if (Touchscreen.current.touches.Count > 1 && Touchscreen.current.touches[1].isInProgress)
             {
                 if (EventSystem.current.IsPointerOverGameObject(Touchscreen.current.touches[1].touchId.ReadValue()))
                     return;
 
                 Vector2 touchDeltaPosition = Touchscreen.current.touches[1].delta.ReadValue();
                 mouseX = touchDeltaPosition.x;
                 mouseY = touchDeltaPosition.y;
             }
         }
         else
         {
             if (Touchscreen.current.touches.Count > 0 && Touchscreen.current.touches[0].isInProgress)
             {
                 if (EventSystem.current.IsPointerOverGameObject(Touchscreen.current.touches[0].touchId.ReadValue()))
                     return;
 
                 Vector2 touchDeltaPosition = Touchscreen.current.touches[0].delta.ReadValue();
                 mouseX = touchDeltaPosition.x;
                 mouseY = touchDeltaPosition.y;
             }
 
         }
 
         mouseX *= mouseSensitivity;
         mouseY *= mouseSensitivity;
 
         xRotation -= mouseY * Time.deltaTime;
         xRotation = Mathf.Clamp(xRotation, -80, 80);
 
         transform.localRotation = Quaternion.Euler(xRotation, 0, 0);
 
         playerBody.Rotate(Vector3.up * mouseX * Time.deltaTime);
     }
 }

and this is the image