2d Collision not working?

Hello, i have the problem that i have Several Objects with 2d Box-Collision and 2d Rigidbodies. But the Player and the test-objects aren't colliding. Also a 2d-ray doesn't collide with the objects.

Movement.js #pragma strict

 var MovSpeed : float;
 function Start () {
 
 }
 
 var damage : int = 5;
 
 function Update () {
     if (Input.GetKey(KeyCode.W)) {
     transform.position.y = transform.position.y + MovSpeed;
     }
     else if (Input.GetKey(KeyCode.S)) {
     transform.position.y = transform.position.y - MovSpeed;
     }
     if (Input.GetKey(KeyCode.D)) {
     transform.position.x = transform.position.x + MovSpeed;
     }
     else if (Input.GetKey(KeyCode.A)) {
     transform.position.x = transform.position.x - MovSpeed;
     }
     if (Input.GetKeyDown(KeyCode.Mouse0)) {
         var ray = new Ray (GameObject.Find("Pistol").transform.position, transform.TransformDirection(Vector3(0,2,0)));
         var hit : RaycastHit;
         Debug.DrawRay(GameObject.Find("Pistol").transform.position,transform.TransformDirection(Vector3(0, 2, 0)), Color.white, 0.1, false);
         if (Physics2D.Raycast(GameObject.Find("Pistol").transform.position, Vector2(2,0), 2) == true) {
         print("Got it");
         hit.collider.transform.SendMessage("ApplyDamage", damage, SendMessageOptions.DontRequireReceiver);
         };
     };
 }

Enemy_test.js

 #pragma strict
 var hp : int;
 
 function ApplyDamage(damage: int) {
     hp = hp - damage;
     if (hp <= 0) {
         Destroy(this);
     }
 }

If you need more information, I attached the project. I hope that at least one will try to help me.