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Code not registering keyboard inputs

Here is my code for this part of the lesson. Everything is literally mirrored from the lesson plan (I checked the whole thing 3 times to be sure) I have no idea what I'm doing wrong.

PlayerMovement.cs
```using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerMovement : MonoBehaviour
{

private Animator playerAnimator;
private float moveHorizontal;
private float moveVertical;
private Vector3 movement;
private float turningSpeed = 20f;
private Rigidbody playerRigidbody;

// Use this for initialization

void Start()
{

// Gather components from the Player GameObject

playerAnimator = GetComponent<Animator>();
playerRigidbody = GetComponent<Rigidbody>();
}

// Update is called once per frame

void Update()
{

// Gather input from the keyboard

moveHorizontal = Input.GetAxisRaw ("Horizontal");
moveVertical = Input.GetAxisRaw ("Vertical");

movement = new Vector3 (moveHorizontal, 0.0f, moveVertical);

}

void FixedUpate ()
{

//if the players movement vector does not = 0...

if (movement != Vector3.zero)
{

//...then create a target rotation based on the movement vector...

Quaternion targetRotation = Quaternion.LookRotation(movement, Vector3.up);

//and create another rotation that moves from the current rotation to the target rotation

Quaternion newRotation = Quaternion.Lerp(playerRigidbody.rotation, targetRotation, turningSpeed * Time.deltaTime);

//..and change the players rotation to the new incremental rotation...

playerRigidbody.MoveRotation(newRotation);

//then play the jump animation.

playerAnimator.SetFloat("Speed", 3f);
}
else
{
//Otherwise dont play the jump animation

playerAnimator.SetFloat("Speed", 0f);
}
}

}
```