error with C# script

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 the 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 FixedUpdate () {

     // if the player's movement vector does not equal Zero ...
     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 th target rotation ...
        Quaternion newRotation = Quaternion.Lerp (playerRigidbody.rotation , targetRotation, turningspeed * Time.deltaTime);

        //...and change the player's rotation to the new Incremental rotation...
        playerRigidbody.MoveRotation(newRotation);

       // ... then play the jump animation.
        playerAnimator.SetFloat ("Speed", 3f);
    } else 
        // otherwise don't play the jump animation
    {    playerAnimator.SetFloat ("Speed" , 0f);
    }

}