Why doesn't my character move?

I've been following a tutorial on how to make a 2D character control, and wrote exactly what it had on my script. I'm using Microsoft Visual Studio to script C Sharp. I don't know what the problem is, there's no error and yet it doesn't work. Looked through every lines and they are as identical as the one from the tutorial. I was wondering if there's something wrong with my script? If so, please explain what I can do to make it work. Here's the script.

using UnityEngine; using System.Collections;

public class playerController : MonoBehaviour {

 //movement variables
 public float maxSpeed;

 Rigidbody2D myRB;
 Animator myAnim;

 // Use this for initialization
 void Start () {
     myRB = GetComponent<Rigidbody2D>();
     myAnim = GetComponent<Animator>();

 }
 
 // Update is called once per frame
 void FixedUpdate () {
     float move = Input.GetAxis("Horizontal");

     myRB.velocity = new Vector2(move * maxSpeed, myRB.velocity.y);
 }

}