cant add script

because of script name doesn't match the name of the file name defined in the script but it does.

here is my code

 using UnityEngine;
 using System.Collections;
 
 public class EnemyAI:MonoBehaviour{ 
     public  Transform target;
     public int moveSpeed;
      public int rotationSpeed;
     
     private  Transform  myTransform;
     
     void Awake() {
         myTransform = transform;
     }
     
     // Use this for initialization
     void Start ()  {
         GameObject go = GameObject.FindGameObjectWithTag("Player");
         
             target = go. transform;
  
     }
         
      // Update is called once per frame
     void Update () {
         Debug.DrawLine(target.position,  myTransform.position, Color.yellow);
     //Look at target
         myTransform.rotation=Quaternion.Slerp(myTransform.rotation,  Quaternion.LookRotation(target.position - myTransform.position), rotationSpeed * Time.deltaTime);
     //Move towards target
         myTransform.position += myTransform .forward * moveSpeed * Time.deltaTime;
     }
 }