Please help urgent. This script not working.

I just started using unity and am doing the space shooter tutorial. that one is for older and i use 7.1. so for moving object, i created scripts with new method. but its not working. pls tell whats wrong?

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

public class PlayerController : MonoBehaviour{
public float speed;
private Rigidbody rb;
void start()
{
rb = GetComponent<Rigidbody> ();
}
void FixedUpdate()
{
float moveHorizontal = Input.GetAxis ("Horizontal");
float moveVertical = Input.GetAxis ("Vertical");
Vector3 movement = new Vector3 (moveHorizontal, 0.0f, moveVertical);
rb.velocity = movement*speed;

}
}

 

So a couple things:
- Use code tags to format code
- "not working" is not a sufficient explanation of the issue
- putting "urgent" in your title won't make people respond faster


To your issue - you have start() and it should be Start()