Bug PLEASE HELP

please, can someone help me?
i got error CS0111 and i dont know how to fix it

Assets\scripts\movement.cs(19,10): error CS0111: Type 'movement' already defines a member called 'Update' with the same parameter types
my code:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class moveme{
Rigidbody rb;
[SerializeField] float movementSpeed = 6f;
[SerializeField] float jumpForce = 5f;
[SerializeField] Transform groundCheck;
[SerializeField] LayerMask ground;


// Start is called before the first frame update
void Start()
{
rb = GetComponent<Rigidbody>();
}

// Update is called once per frame
void Update()
{
float horizontalInput = Input.GetAxis("Horizontal");
float verticalInput = Input.GetAxis("Vertical");

rb.velocity = new Vector3(horizontalInput * movementSpeed, rb. velocity.y, verticalInput * movementSpeed);

if (Input.GetButtonDown("Jump"))
{
rb.velocity = new Vector3(rb.velocity.x, jumpForce, rb.velocity.z);
}
}
/*
bool IsGrounded()
{
Physics.CheckSphere(groundCheck.position, .1f, )
}
*/nt : MonoBehaviour

}

 

i updated the code

 

I FIXED IT