error CS0111: Type 'PlayerMotor' already defines a member called 'Update' with the same parameter types (how to fix)

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

public class PlayerMotor : MonoBehaviour
{
    private CharacterController controller;
    private Vector3 playerVelocity;
    private bool isGrounded;
    public float speed = 5f;
    public float gravity = -9.8f;
    public float jumpHeight = 3f;
    public bool isSprinting = false;
    public float sprintingMultiplier;
    public bool lerpCrouch;
    public bool crouching;
    public float crouchTimer;
    public bool sprinting;
    // Start is called before the first frame update
    void Start()
    {
        controller = GetComponent<CharacterController>();
    }

    // Update is called once per frame
    void Update()
    {
        isGrounded = controller.isGrounded;
    }
    public void ProcessMove(Vector2 input)
    {
        Vector3 moveDirection = Vector3.zero;
        moveDirection.x = input.x;
        moveDirection.z = input.y;
        controller.Move(transform.TransformDirection(moveDirection) * speed * Time.deltaTime);
        playerVelocity.y += gravity *  Time.deltaTime;
        if (isGrounded && playerVelocity.y < 0)
            playerVelocity.y = -2f;
        controller.Move(playerVelocity * Time.deltaTime);
        Debug.Log(playerVelocity.y);
    }
    public void Jump()
    {
        playerVelocity.y = Mathf.Sqrt(jumpHeight * -1.0f * gravity);
    }
    void Update()
    {
        isGrounded = controller.isGrounded;
        if (lerpCrouch)
        {
            crouchTimer += Time.deltaTime;
            float p = crouchTimer / 1;
            p *= p;
            if (crouching)
            {
                controller.height = Mathf.Lerp(controller.height, 1, p);
            }
            else
            {
                controller.height = Mathf.Lerp(controller.height, 1, p);
            }

            if (p > 1)
            {
                lerpCrouch = false;
                crouchTimer = 0f;
            }
        }
    }

    public void Crouch()
    {
        crouching = !crouching;
        crouchTimer = 0;
        lerpCrouch = true;
        if (crouching)
        {
            speed = 3;
        }
        else
        {
            speed = 5;
        }
    }
    public void Sprint()
    {
        sprinting = !sprinting;
        if (sprinting)
        {
            speed = 8;
        }
        else
        {
            speed = 5;
        }
    }
}***

Hi!

You’ve got two Update methods, this one:

void Update()
{
    isGrounded = controller.isGrounded;
}

and this one:

void Update()
{
    isGrounded = controller.isGrounded;
    if (lerpCrouch)
    //...

As it doesn’t do anything, try removing the first.

Hope this helps!