Problems with javascript

I followed an outdated tutorial on how to create an AI the tutorial version of the unity is the 3.5.0 and mine is 3.5.6 so here is the tutorial's error line :

 #pragma strict
 var distHeroi : Vector3; 
 var velocidadeTranlate: float; 
 var distanciaMinima: float; 
 var normX: float; 
 var normZ: float;
 
 function Start () 
 { 
     distanciaMinima = 10; 
 }
 
 function Update () 
 {
     velocidadeTranlate = 6 * Time.deltaTime;
     
     distHeroi = corpo.posicaoHeroi - transform.position; 
     normX = distHeroi.x; 
     normZ = distHeroi.z;
     
     if(normX < 0) 
         normX = -normX; 
     
     if(normZ < 0) 
         normZ = -normZ;
     
     print(normX+" - "+normZ);
     
     if(normX == 0)
         transform.Translate(velocidadeTranlate,0,0); 
         
     else 
         transform.Translate(-velocidadeTranlate,0,0);
     
     if(distHeroi.z > 0) 
         transform.Translate(0,0,velocidadeTranlate); 
         
     else 
         transform.Translate(0,0,-velocidadeTranlate); 
 } 
  
 function OnCollisionEnter(collision: Collision) 
 { 
     if (collision.gameObject.tag == "Bala") 
     { 
         Destroy(gameObject);
     }
 }
 

So i created that script:

 #pragma strict
 var helidistance : Vector3; function Start () 
 {
 
 }
 
 function Update () 
 {
     helidistance = Helimovimentação.posicao - transform.position;
 } 
 
 function OnCollisionEnter(collision: Collision)
 { 
     if (collision.gameObject.tag == "Bullet")
     { 
         Destroy (gameObject); 
     } 
 }

And the error message is that one :

Assets/Scripts/Inimigo.js(9,29): BCE0044: unexpected char: 0xE7.

Please help and thanks.

OBS: corpo.posicaoHeroi "corpo" is another script that is the hero's script, wich has a position variable like this :

 var posicao : Vector3