The modifier 'private' is not valid for this item, C#

The modifier 'private' is not valid for this item

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

public enum PlayerState
{
 attack,
 walk
}

public class PlayerMovement : MonoBehaviour
{

public float speed;
    private Rigidbody2D myRigidbody;
    private Vector3 change;
    private Animator animator;

// Start is called before the first frame update
    void Start()
    {
        animator = GetComponent<Animator>();
        myRigidbody = GetComponent<Rigidbody2D>();
        
    }

// Update is called once per frame
    void Update()
    {
        change = Vector3.zero;
        change.x = Input.GetAxisRaw("Horizontal");
        change.y = Input.GetAxisRaw("Vertical");
        if (Input.GetButtonDown("attack") && currentState != PlayerState.attack)
        {

StartCoroutine(AttackCo());
        }
        else if (currentState == PlayerState.walk)
        {
            UpdateAnimationAndMove();
        }

private IEnumerator AttackCo()
        {
            animator.SetBool("attacking", true);
            currentState = PlayerState.attack;
            yield return null;
            animator.SetBool("attacking", false);
            yield return new WaitForSeconds(.33f);
            currentState = PlayerState.walk
        }

void UpdateAnimationAndMove()
        {
            if (change != Vector3.zero)
            {
                MoveCharacter();
                animator.SetFloat("moveX", change.x);
                animator.SetFloat("moveY", change.y);
                animator.SetBool("moving", true);
            }
            else
            {
                animator.SetBool("moving", false);
            }

}
        
    }

void MoveCharacter()
    {

myRigidbody.MovePosition(
            transform.position + change * speed * Time.deltaTime

);
    }
}


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