Decreasing Transparency Over Time.. Why wont this code work?

I am trying to make a Part become completely transparent, over the course of 60 seconds. Wait 7 seconds, and then repeat continuously. Here's what I've Tried:

1. Insert NumberValue into Part (Value =0)

2. Inserted Script into part:

local transparency = script.Parent.Transparency

while true do

	script.Parent.Transparency = transparency.Value

	for i = 1,transparency.Value do

	wait(1) 

	transparency.Value = transparency.Value + 0.01666666   --i/60

	script.Parent.Transparency = transparency.Value

end

wait (7)

transparency.Value = 0

end

While testing the game, the part does not become more transparent.

Here's an error code that show up: Workspace.Part.Transparency Script:3: attempt to index local 'transparency' (a number value)

I'm new to scripting and would really appreciate some help/feedback. Thank you!

You're making it more complicated than it has to be. Just do this instead:

while true do
	for i = (1/60), 1, (1/60) do
		wait(1)
		script.Parent.Transparency = i
	end 
	script.Parent.Transparency = 1 --This is to ensure that the transparency gets set equal to 1.
	wait(7)
	script.Parent.Transparency = 0
end

--[[ 

i = (1/60) is that starting value,  1 is the ending value, and 1/60 is how much is added to the previous value.

I basically set the transparency of the part equal to the variable i. That's all you had to do.

]]--

your scipt sets a variable AS the transparency it's only changing your variable.

local tparency = script.Parent
tparency.Transparency = 1 --THIS WORKS

local tparency2 = script.Parent.Transparency
tparency2 = .5 -- This changes the variable

also why are you trying to change a nonexisting value you cant have a number in a number ;(transparency.Value does not work) instead do transparency = (number0