Input Axis horizontal is not set up

Hello,
i made this script but every time i get a error:
Input axis horzontal is not setup.
this is my code:

using UnityEngine;
using System.Collections;

public class PlayerMovment : MonoBehaviour {
public float movespeed;

private Vector3 input;

// Use this for initialization
void Start () {

}

void Update () {
input = new Vector3(Input.GetAxis (“horizontal”) , 0, Input.GetAxis (“Vertical”));
print (input);
}
}

its for a playermovment

You probably need to add that axis in the input manager:

But did you tried capital ‘H’ → “Horizontal” ?

The litle dumb things! but thxs