Im trying to make it so that my character(and the whole game) could pause in place, get the objective box, the player clicks the objective box, and the game un-pauses. I keep on getting this error though which is keeping me from progressing.

pragma strict

 var player : GameObject;
 var bool : boolean;
 
 function OnTriggerEnter(other : Collider) {
 if(other.tag == "Player"){
     bool = true;
     player.GetComponent(player).speed = 0;
     }
 }
 
 function OnGUI() {
 if(bool == true) {
 
     if(GUI.Button (Rect ( 100, 100, 350, 150), "Soldier! Your mission is to get to MotherRobo's intel area!")) {
         Debug.Log("Door Works!");
         bool = false;
         player.GetComponent(player).speed = 10;
         Destroy(gameObject);
         }
     }
 }