[SOLVED] Enemy Script : Mob doesn't take damage

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I solved my problem finally.

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Hi. I'm currently working on a little FPS game. It is the first game that I do. I got a problem. My mob doesn't take damage.

Can you help me ?

ShootScript.js is on the camera of the player. EnemyScript.js is on the mob.

Here is my code :

File : ShootScript.js

 var fireRate = 0.30;
 var impact:GameObject;
 var canFire = true;
 
 var sound:AudioClip[];
 
 var currentAmmo = 10;
 var maxAmmo = 10;
 var reloadTime = 2;
 
 var damage:float=10;
 
 Screen.showCursor = false;
 
 function Update () {
     if (Input.GetButton("Fire1")) {
         if (canFire==true) {
             canFire = false;
             fire();
             
         }
     }
 }
 
 function fire() {
     if (currentAmmo >0) {
         fireOneShot();
         currentAmmo = currentAmmo - 1;
         
         if (currentAmmo==0) {
             audio.PlayOneShot(sound[1]);
             yield WaitForSeconds(reloadTime);
             currentAmmo = maxAmmo;
             audio.PlayOneShot(sound[2]);
             canFire = true;
         }
     }
 
 }
 
 function fireOneShot() {
     audio.PlayOneShot(sound[0]);
     var direction = transform.TransformDirection(Vector3.forward);
     var hit:RaycastHit;
     
     if (Physics.Raycast(transform.position, direction, hit, 100)) {
     
         tempRot=Quaternion.FromToRotation(Vector3.up, hit.normal);
         
         Instantiate(impact, hit.point, tempRot);
         
         if (hit.rigidbody) {
             hit.rigidbody.AddForce(1000*direction);
         }
         
         hit.collider.SendMessageUpwards("makeDamage", damage, SendMessageOptions.DontRequireReceiver);
     }
     yield WaitForSeconds(fireRate);
     canFire = true;
 }
 

File : EnemyScript.js

 var hitPoints = 10;
 
 function makeDamage(damage:float) {
     hitPoints -= damage;
     
     if (hitPoints <= 0) {
         Destroy(gameObject);
     }
 }

Sorry for my English, it is not my first language.

Edit : I change "DontRequireReveicer" for "DontRequireReceiver". Second problem now.