Argumentexcept Unity5 Input error horizontal is not setup

Question

I’m trying to follow the game tutorial "Nightmare" canal playing with Nils, my script does not present any errors, however my character does not move and the Unity 5 shows this error related to Axis horizontal. I checked the Nils video and it does not change anything on Axis, only shows. So I can’t move my character and he goes into Idle animation. I thank you in advance. follows below the error presented by Unity 5

Argumentexception: Input Axis horizontal is not setup. To change the input Settings use: Edit -> Project Settings -> Input Playermovement.Fixedupdate () (at Assets/Scripts/Player/Playermovement.Cs:37)

follows the code PlayerMovement.cs

using UnityEngine;

public class PlayerMovement : MonoBehaviour
{
    //velocidade do jogador
    public float speed = 6f;

    //vetor responspável pelo movimento
    Vector3 movement;          

    //responsável pela animação              
    Animator anim; 

    //responsável pela física do objeto
    Rigidbody playerRigidbody;

    //máscara de chão
    int floorMask;

    //inf para o Raycast
    float camRayLenght = 100f;


        void awake()
    {
        //atribuir a máscara da camada
        floorMask = LayerMask.GetMask("Floor");

        //atribuir as referências
        anim = GetComponent<Animator>();
        playerRigidbody = GetComponent<Rigidbody>();
    }


    void FixedUpdate()
    {
        float h = Input.GetAxisRaw("horizontal");
        float v = Input.GetAxisRaw("vertical");

        Move(h, v);
        Turning();
        Animating(h, v);
    }



    void Move(float h, float v)
    {
        //determina o movimento
        movement.Set(h, 0f, v);

        //normaliza o movimento
        movement = movement.normalized * speed * Time.deltaTime;

        //efetua o movimento no personagem
        playerRigidbody.MovePosition(transform.position + movement);
    }

    //girar o jogador  
    void Turning()
    {
        Ray camRay = Camera.main.ScreenPointToRay(Input.mousePosition);

        RaycastHit floorHit;

        if (Physics.Raycast(camRay,out floorHit, camRayLenght, floorMask))
        {
            Vector3 playerToMouse = floorHit.point - transform.position;
            playerToMouse.y = 0f;
            Quaternion newRotation = Quaternion.LookRotation(playerToMouse);
            playerRigidbody.MoveRotation(newRotation);

        }

    }
    void Animating(float h, float v)
    {
        bool walking = (h != 0f || v != 0f);
        anim.SetBool("IsWalking", walking);

    }


}

Follow Horizontal input photo being reported in error

I kept following the tutorial and everything is working except for the fact that I can not move and the mouse is not followed, but now the console shows an error in line 56 that is this here:

    //efetua o movimento no personagem
    playerRigidbody.MovePosition(transform.position + movement);