Unity2D Raycast not working

I tried many times, searched on different sites ... Nothing works. The problem is in the operator if(hit.collider.gameObject == target). I want to make the turret shoot only when the enemy is in front of it. i changed configurations method Raycast() Code:

  Vector2 up = transform.TransformDirection(Vector2.right) * 5;           
             Debug.DrawRay(transform.position, up, Color.green, 1);
             if (!shoot)
             {
                 RaycastHit2D hit = Physics2D.Raycast(transform.position, up, 0.1F);
                 if (hit != null)
                     if (hit.collider.gameObject == target)
                     {
                         Instantiate(Bullet, shootElem.position, transform.rotation);
                         shoot = true;
                         Invoke("reload", shootSpeed);
                     }
             }
         }
     }
    
     void reload()
     { shoot = false; }