Public Float Not Showing Up in Inspector

So basically I'm trying to get my character to move, I've set up the animation to change the character from idle to walk in Animation. Ive now made a script that is supposed to move it, but the public float is not showing up in the inspector. Hers the code:

 using UnityEngine;
 using System.Collections;
 
 public class Pixelani : MonoBehaviour {
 
     public float maxSpeed = 10f;
         bool facingRight = true;
 
     Animator anim;
 
     void Start () {
         anim = GetComponent <Animator> ();
 
     
     }
     
     // Update is called once per frame
     void FixedUpdate () {
         float move = Input.GetAxis ("Horizontal");
 
         anim.SetFloat ("Speed", Mathf.Abs (move));
 
         rigidbody2D.velocity = new Vector2 (move * maxSpeed, Rigidbody2D.velocity.y);
 
         if (move > 0 && ! facingRight)
                         Flip ();
                 else if (move < 0 && facingRight)
                         Flip ();
     
     }
 
     void Flip()
     {
         facingRight =! facingRight;
         Vector3 theScale = transform.localscale;
         theScale.x *= -1;
         Transform.localscale = theScale;
     }
 }

Any help at all will be appreciated. Thanks.