AddComponent To GameObjects On Array

Hello, is it possible for me to add the component "TimeGate" to every object with the tag "PhysicsObject"?

Whenever I try, I get the error "(15,53): BCE0138: 'quack' is not a generic definition"

Here is the code:

 var collisionObject : GameObject;
 var physicsObjects : GameObject[];
 
 
 function OnTriggerExit(collision : Collider)
     {
     collisionObject = collision.gameObject;
     
     if(collisionObject.tag == "Player")
         {
         physicsObjects = GameObject.FindGameObjectsWithTag("PhysicsObject");
         if(!collisionObject.GetComponent("TimeGate"))
             {
             collisionObject.AddComponent.<TimeGate>();
             physicsObjects.AddComponent.<TimeGate>();
             }
         }
     }