Can anyone tell me how to get the last mini kit piece in episode I, chapter 1? I am in a room you need R2D2 to enter. There is a second room in the upper right-hand corner with a force field blocking it. I have done everything I can think of and used the force on anything that I could, but I still can't drop the field. I tried going through the hole in the wall, but I can't go anywhere once on the other side.