Attempt to call a nil value

Help and Feedback Scripting Support
1

I’m pretty new to OOP, but I’m trying to get my tycoon plot system to run this update function right away, the problem is that when I run the script, the functions errors saying that it attempted to call a nil value. Does anyone know why and how to fix it?

Plot Module:

local Tile = require(script.Tiles)

local module = {}

function module:GetPlot(Plot)
	local NewPlot = setmetatable({}, module)
	
	self.Name = Plot.Name
	self.Owner = Plot.Owner
	self.Tiles = Tile:newFolder(Plot.FolderofTiles)
	
	self.Tiles:UpdateTiles() -- Attempt to call a nil value
	
	return NewPlot
end

return module

Tile Module:

local module = {}

function module:newFolder(FolderofTiles) 
	local tileFolder = setmetatable({}, module)

	self.Tiles = FolderofTiles

	return tileFolder
end

function module:UpdateTiles(SingleTile, hasReset)
	print(self)
end

return module
1 Like
2

Looks like you named your self object to NewPlot, you might wanna fix this (this is on both modules)

3

I changed it but I still got the same error

-- Plot module

local Tile = require(script.Tiles)

local module = {}

function module:GetPlot(Plot)
	local NewPlot = setmetatable({}, module)
	print(Plot.Tiles)
	
	NewPlot.Plot = Plot.Name
	NewPlot.Owner = Plot.Owner
	NewPlot.Tiles = Tile:newFolder(Plot.FolderofTiles)
	
	NewPlot.Tiles:UpdateTiles()
	
	return NewPlot
end

return module

---------------------------------------------------------------------------------

-- Tiles module

local module = {}

function module:newFolder(FolderofTiles) 
	local tileFolder = setmetatable({}, module)
	tileFolder.tiles = FolderofTiles
	return tileFolder
end

function module:UpdateTiles(SingleTile, hasReset)
	print(self)
end

return module
4

Not 100% sure, but you could try naming them all to self instead

5

NEVERMIND, just realized I forgot to put .__index in each module, now they work!

1 Like