Attempt to index nil with 'FindFirstChild'

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#1

I have a script that gives players ammo when it’s parent which is a part is touched. But I keep getting this error message saying (ScriptName):Attempt to index nil with ‘FindFirstChild’ Is there a fix for this?

It is in this line:

local ammolimit = tool:FindFirstChild("AmmoLimit")
2 Likes
#2

How to get tool?
Can you put the whole script, please.

#3 
local part = script.Parent
local pickupSound = part:WaitForChild("Pickup")
local pickup = false

part.Touched:Connect(function(otherPart)
	local humanoid = otherPart.Parent:FindFirstChild("Humanoid")
	local tool = otherPart.Parent:FindFirstChildWhichIsA("Tool")
	local ammolimit = tool:FindFirstChild("AmmoLimit")
	local ammo = tool:FindFirstChild("Ammo")
	local maxammo = tool:FindFirstChild("MaxAmmo")
	local ammoplus = tool:FindFirstChild("AmmoPlus")
	if humanoid and maxammo.Value < ammolimit.Value and pickup == false then
		pickup = true
		pickupSound:Play()
		part.Transparency = 1
		maxammo.Value = maxammo.Value + ammoplus.Value
		pickup = false
		wait(0.509)
		pickupSound:Stop()
		pickupSound:Destroy()
		part.Parent:Destroy()
	end
end)
1 Like
#4

Sometimes tool is invalid, you can use return to stop the script from following when tool is invalid or for other reasons.

local part = script.Parent
local pickupSound = part:WaitForChild("Pickup")
local pickup = false

part.Touched:Connect(function(otherPart)
	local humanoid = otherPart.Parent:FindFirstChild("Humanoid")
	local tool = otherPart.Parent:FindFirstChildWhichIsA("Tool")
	if not humanoid or not tool then		return		end
	
	local ammo = tool:FindFirstChild("Ammo")
	local ammolimit = tool:FindFirstChild("AmmoLimit")
	local maxammo = tool:FindFirstChild("MaxAmmo")
	if not ammolimit or not maxammo then		return		end
	
	local ammoplus = tool:FindFirstChild("AmmoPlus")
	if maxammo.Value < ammolimit.Value and pickup == false then
		pickup = true
		pickupSound:Play()
		part.Transparency = 1
		maxammo.Value = maxammo.Value + ammoplus.Value
		pickup = false
		wait(0.509)
		pickupSound:Stop()
		pickupSound:Destroy()
		part.Parent:Destroy()
	end
end)
1 Like