# Workspace.Die.Roll:14: attempt to index nil with 'Position'

I’m making a monopoly remake game and I’ve ran into an error with finding which side is facing up, here’s the script:
(The output says the line 14 is the problem)

``````local die = script.Parent
local rnd = Random.new(tick())
local upPart = workspace.UpPart

local function isSide (facing, p2pVector)
local angle = math.acos(facing:Dot(p2pVector))
local deg = angle * 180/math.pi
if deg < 45 then
return true
end
end

local function isLooking(obj1, obj2)
local p2pVector = (obj2.Position - obj1.Position).unit
-- check for 2
local found = isSide(obj1.CFrame.LookVector, p2pVector)
if found then
return 2
end
-- check for 5
local found = isSide(-obj1.CFrame.LookVector, p2pVector)
if found then
return 5
end
-- check for 3
local found = isSide(obj1.CFrame.RightVector, p2pVector)
if found then
return 3
end
-- check for 4
local found = isSide(-obj1.CFrame.RightVector, p2pVector)
if found then
return 4
end
-- check for 6
local found = isSide(obj1.CFrame.UpVector, p2pVector)
if found then
return 6
end
-- check for 1
local found = isSide(-obj1.CFrame.UpVector, p2pVector)
if found then
return 1
end

end

local function rollDie()
die.Anchored = false
local x = rnd:NextInteger(-30, 30)
local y = rnd:NextInteger(-30, 30)
local z = rnd:NextInteger(-30, 30)
die.RotVelocity = Vector3.new(x, y, z)
wait(3)
local result = isLooking(die, UpPart)
print ("Result = ", result)
wait(3)
die.Anchored = true
die.Position = Vector3.new(0 ,30, 0)
end

wait(5)
rollDie()
``````

you’re doing local result = IsLooking(die, Uppart) when you have upPart defined as a variable.