Need help with window error

Hello,
I am encountering an error with window api that crashes the pocket computer. This is the error :

window:57:Expected number

And here is the full code of the program (yes, it is the Improved ToDo list) :
http://pastebin.com/FpMjPiAc
I just know that the error comes from here :

if fs.exists("/.todocfg") then
	opfile = fs.open("/.todocfg", "r")
	local color1 = tonumber(opfile.readLine())
	local color2 = tonumber(opfile.readLine())
	opfile.close()
else
	local color1 = colors.lime
	local color2 = colors.white
end

If I add :

	local color1 = colors.lime
	local color2 = colors.white

after the condition, it works.

Where is the problem?

Thanks!

It's because color1 and color2 are being localized to that if statement. Just create them at the start of your program and then set them in your if statement:

Start of the program:

local color1 = colors.lime
local color2 = colors.white

If statement:

if fs.exists("/.todocfg") then
  local opfile = fs.open("/.todocfg", "r") --// Localizing this wouldn't hurt

  color1 = tonumber(opfile.readLine())
  color2 = tonumber(opfile.readLine())

  opfile.close()
end

Wow, very fast answer !
I didn't thought about that solution, got angry after seeing this error a dozen times :lol:/>
Thanks a lot !