[SOLVED] 3D Main Menu not working

[SemperGratis (Semper)]

[SOLVED THE PROBLEM, CHECK BOTTOM FOR SOLUTION]

Hello all programmers. I am having a problem with a main menu script. When I playtest, I get an error that says " Workspace.SemperGratis.MainMenuScript:13: attempt to index nil with ‘Position’ ".

This is what it looked like prior to this error:

Here is what it looks like after the error:

Here is the code:

local Players = game:GetService("Players")

local player = Players.LocalPlayer
local Camera = workspace.CurrentCamera
local RunService = game:GetService("RunService")
local RS = game:GetService("ReplicatedStorage")
local camPart = RS:FindFirstChild("camPart"):Clone()
local inMenu = true

task.wait(0.2)

camPart.Parent = workspace
camPart.Position = workspace:FindFirstChild("introPart").Position
Camera.CameraSubject = camPart
Camera.CameraType = Enum.CameraType.Scriptable

local moveFactor = 0.0005
local previousMouseX, previousMouseY = nil, nil
local MAX_POSITION = 0.5
local OriginalPosition = camPart.Position
local UI = RS:FindFirstChild("MenuUI"):Clone()
UI.Parent = workspace

local targetPosition = OriginalPosition
local moving = false

local PlayButton = UI:FindFirstChild("PlayPart").SurfaceGui.TextButton

PlayButton.Activated:Connect(function()
	UI:Destroy()
	
	camPart:Destroy()
	Camera.CameraSubject = player.Character:FindFirstChild("Humanoid")
	Camera.CameraType = Enum.CameraType.Custom
	inMenu = false
end)

RunService.RenderStepped:Connect(function()
	if inMenu == false then return end

	local mouse = player:GetMouse()

	local screenX = Camera.ViewportSize.X
	local screenY = Camera.ViewportSize.Y

	local leftoverScreenX = screenX - mouse.X
	local leftoverScreenY = screenY - mouse.Y

	local DistanceFromOriginX = (screenX/2) - leftoverScreenX
	local DistanceFromOriginY = leftoverScreenY - (screenY/2)

	local clampedX = math.clamp(DistanceFromOriginX * moveFactor, -MAX_POSITION, MAX_POSITION)
	local clampedY = math.clamp(DistanceFromOriginY * moveFactor, -MAX_POSITION, MAX_POSITION)

	if previousMouseX and previousMouseY then
		local mouseMoved = (DistanceFromOriginX ~= previousMouseX) or (DistanceFromOriginY ~= previousMouseY)
		if mouseMoved then
			moving = true
			targetPosition = OriginalPosition + Vector3.new(clampedX, clampedY, 0)
		else
			moving = false
		end
	end

	if moving then
		camPart.CFrame = camPart.CFrame:Lerp(CFrame.new(targetPosition), .1)
	else
		camPart.CFrame = camPart.CFrame:Lerp(CFrame.new(targetPosition), .2)
	end

	local OffsetUIX = (screenX/4) * 0.009
	local OffsetUIY = (screenY/4) * 0.009

	Camera.CFrame = Camera.CFrame:Lerp(CFrame.new(camPart.Position), .2)
	local finalTargetPosition = camPart.Position + Vector3.new(-OffsetUIX, -OffsetUIY+1, -10)

	if UI.PrimaryPart then
		UI:SetPrimaryPartCFrame(UI.PrimaryPart.CFrame:Lerp(CFrame.new(finalTargetPosition) * CFrame.Angles(0, math.rad(23), 0), .1))
	end

	previousMouseX = DistanceFromOriginX
	previousMouseY = DistanceFromOriginY
end)

(please don’t judge me if the code is bad, I followed a tutorial on this)

I believe part of the issue might be that I added in a StarterCharacter, or that the camPart is not loaded in before it is set as the camera subject, but I am unsure.

If you know how to fix this, please respond in the comments.

Have a great day everyone!

[SOLUTION: I used WaitForChild instead of FindFirstChild. All I did.]

[Giftdenz]

Reply to your own post and mark the reply as the solution to properly mark something as solved

[SemperGratis (Semper)]

[SOLUTION: I used WaitForChild instead of FindFirstChild. All I did.]

[SemperGratis (Semper)]

my bad. i didnt know that trick tho, so thanks!