BCE0019: 'collision' is not a member of 'Object'.

Thats Unity3D js script error, on pc it work fine, but if I try to switch platform to android...

Trigger_Script :

 #pragma strict
 var P : GameObject;
 var P_script;
 var P_objname = "Player";
 var P_script_name = "Player_script";
 
 function Start() {
 
 P = GameObject.Find(P_objname);
 P_script = P.GetComponent(P_script_name);
 }
 
 function OnTriggerEnter(collider : Collider) {
 if(collider.gameObject.name == P_objname) P_script.collision = true;
 }

Player_Script :

 #pragma strict
 var collision : boolean;
 var respawn_position : Vector3;
 var respawn_time : int = 1;
 var respawn_objname = "Respawn";
 
 function Update () {
 if(collision) {
 Respawn();
 }
     }
 
 function Respawn() {
 renderer.enabled = false;
 respawn_position = GameObject.Find(respawn_objname).transform.position;
 gameObject.transform.position = respawn_position;
 yield WaitForSeconds(respawn_time);
 renderer.enabled = true;
 collision = false;
 }