Moving PlatForms bodyPosition is not working?

local model = game.Workspace.MovingPlatForms
local platform = model.Mover
local start = model.Start
local finish = model.Finish
local bodyPosition = platform.BodyPosition

while true do
	bodyPosition.position = start.Position
	wait(6)
	bodyPosition.position = finish.Position
	wait(6)
end

I tried to make a moving platform but it's not working! i tried Free models they are working but if i did the same it's not working....It's really annoying me!

in between "while true do" and "end" bodyPosition.position is incorrect. It should be "bodyPosition.Position." The "position should be Position" for both line 8 and 10