Index nil with position

Help and Feedback Scripting Support
#1

Hey there!

I am currently making a game and i need a gun system, so i had a go at making one whilst using a YouTube tutorial as support. I followed every step and got an error that i have tried fixing but it just wont work.

The error:

attempt to index nil with ‘Position’

The Script:

-- This is a server script within a tool that is inside of workspace. This is just a small fraction of the script.

local function shootfunction(plr, hit, target)
	if reloading then return end
	if ammo.Value < 1  then
		reload()
		return
	end
	
	local ray = Ray.new(gun.SmokePart.Position, (hit.Position - gun.SmokePart.Position).unit * 100) -- Error occuring here (hit.Position doesnt work)
	local part, pos, globalVec = game.Workspace:FindPartOnRay(ray, gun.Parent, false, true)
	if part then
		if part.Parent:FindFirstChild("Humanoid") then part.Parent.Humanoid:TakeDamage(15) end
	end

Thank you! :smile:

#2

what line of the code does the error appear

#3

It is occurring here:

local ray = Ray.new(gun.SmokePart.Position, (hit.Position - gun.SmokePart.Position).unit * 100) -- Error occuring here (hit.Position doesnt work)```
#4

Hit is a position it is not an instance, right? I think it should be just hit.

#5

Could you provide a little more info (console error would be useful).

#6

I tried removing .Position and now i’ve got this error:

attempt to perform arithmetic (sub) on nil and Vector3

Line:

local ray = Ray.new(gun.SmokePart.Position, (hit - gun.SmokePart.Position).unit * 100)
#7

Did you mean this?

Screenshot 2021-10-22 163200
Screenshot 2021-10-22 163200772×95 32.5 KB

#8

This would indicate that hit isn’t even being assigned a value. When calling the function named “shootfunction” are you passing a 2nd value as an argument to the function (which would satisfy the 2nd parameter “hit”)?

#9

Im pretty sure the hit value was assigned when creating the ray cast, but i may be wrong. If it helps i can provide the entire script and youtube tutorial if needed.

#10

There are values when firing the server:

Fire:FireServer(mouse.Hit, mouse.Target)

But im not sure if those would carry over to the server.

#11

Well the console error is stating that you’re attempting to access a field named “Position” of a nil value.

#12

You could debug by adding print(hit, target) that the values are correctly received by the server within the first line of the function connected to the corresponding OnServerEvent event.

1 Like
#13

I have fixed the problem.

It turns out that when i was connecting the function i accidently added brackets.