How to fix attempt to call a nil value error on module function usage

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1

I’m making a party system for my horror game that previously works but now gives this error:
Players.starrstrux.PlayerScripts.ClientMain:17: attempt to call a nil value - Client - ClientMain:17
14:31:20.326 Stack Begin - Studio
14:31:20.327 Script ‘Players.starrstrux.PlayerScripts.ClientMain’, Line 17 - Studio - ClientMain:17
14:31:20.327 Stack End - Studio

LobbyUIHandler.Initialize(script.LobbyUI) -- The line where I'm getting the error

task.wait(5)

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local PlayerGui = game.Players.LocalPlayer:WaitForChild("PlayerGui")

local Modules = ReplicatedStorage:WaitForChild("Assets"):WaitForChild("Modules")

--local NotificationManager = require(Modules:WaitForChild("NotificationManager"))
local LobbyUIHandler = require(script:WaitForChild("LobbyUIHandler"))
local RoleShopUIHandler = require(script:WaitForChild("RoleShopUIHandler"))

print("Client Main Script Initialized.")

LobbyUIHandler.Initialize(script.LobbyUI) -- (line 17)
RoleShopUIHandler.Initialize(PlayerGui.LobbyUI.MainFrame.RoleShopSection)

local TeleportService = game:GetService("TeleportService")
local teleportData = TeleportService:GetLocalPlayerTeleportData()

if teleportData and teleportData.partyCode then
	print("Received teleport data:", teleportData)
	if teleportData.isPrivate then
		ReplicatedStorage.Events.RemoteEvents.JoinParty:FireServer(teleportData.partyCode, teleportData.password)
	else
		ReplicatedStorage.Events.RemoteEvents.JoinParty:FireServer(teleportData.partyCode, "")
	end
end

LobbyUIHandler (snippet):

local LobbyUIHandler = {}

function LobbyUIHandler.Initialize(ui)
	print("ran")
	
	LobbyUI = ui -- This is the main ScreenGui for the lobby
	LobbyUI.Parent = LocalPlayer.PlayerGui
	LobbyUI.Enabled = true -- Ensure the ScreenGui is enabled

      -- ... and the rest of the function
end

return LobbyUIHandler

Let me know if more code/snippets are needed. Thank you for your time.

1 Like
2

Strange error, your code looks fine, can you print the LobbyUIHandler table to see if it’s perhaps getting overwritten somehow?

3

It’s probably still waiting to require it, and then you try to call Initialize. Test this hypothesis by adding wait(4) before Initialize call

4

Everything runs serially on one thread, there’s no race condition to be had there.

5

I figured it out. I had a syntax error in one of my functions but it wasn’t directly showing it to me for some reason. Should’ve gave it a full check lol

6

This is why, :WaitForChild() is the goat