My character dont move can someone help

Questions & Answers
1

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

public class johnsa : MonoBehaviour
{
private Rigidbody2D Rigidbody2D;
private float horizontal;
// Start is called before the first frame update
void Start()
{
Rigidbody2D = GetComponent();
}

// Update is called once per frame
void Update()
{
    horizontal = Input.GetAxisRaw("Horizontal");
   
    if (Input.GetKeyDown(KeyCode.W))
    {
        Jump();
    }
}

private void Jump ()
{
    Rigidbody2D.AddForce(Vector2.up);
}
private void fixedUpdate()
{
    Rigidbody2D.velocity = new Vector2(horizontal, Rigidbody2D.velocity.y);
}

}

2

FixedUpdate method should start with a capital letter “F” like this: FixedUpdate(), not fixedUpdate().