Wheels can't be called; Datamodel Error

Help and Feedback Scripting Support
#1

Hi, I’m trying to call the wheels in my local script, but I’m always getting this error: Wheels is not a valid member of DataModel “BloxKart Testing - Elements @ 15 Nov 2020 12:47”

This is my script:

local motorFR = kart.Wheels.AxelFR.Motor
local motorFL = kart.Wheels.AxelFL.Motor
local motorRR = kart.Wheels.AxelRR.Motor
local motorRL = kart.Wheels.AxelRL.Motor

local servoFR = kart.Wheels.ServoFR.Servo
local servoFL = kart.Wheels.ServoFL.Servo

“Wheels” is a model and the axels and servos are parented to “Wheels”

#2

Use :WaitForChild(“”);

local motorFR = kart:WaitForChild("Wheels"):WaitForChild("AxelFR").Motor
local motorFL = kart.Wheels:WaitForChild("AxelFL").Motor
local motorRR = kart.Wheels:WaitForChild("AxelRR").Motor
local motorRL = kart.Wheels:WaitForChild("AxelRL").Motor

local servoFR = kart.Wheels:WaitForChild("ServoFR").Servo
local servoFL = kart.Wheels:WaitForChild("ServoFL").Servo

If this doesn’t work, can you please send a screenshot of explorer with the descendants (which you’re calling) of the kart.

#3

The errors went away, however, the values of the Torque and AngularVelocity aren’t changing in the script.

Here is my other part of the script:


	throttle = 1
	motorFR.AngularVelocity = 500 * throttle
	motorFL.AngularVelocity = -500 * throttle
	motorRR.AngularVelocity = 500 * throttle
	motorRL.AngularVelocity = -500 * throttle

EDIT: A warning appeared: Infinite yield possible on ‘BloxKart Testing - Elements @ 15 Nov 2020 13:06:WaitForChild(“Wheels”)’

#4

Double check all your references and make sure Wheels is a valid descendent of whatever you’re running WaitForChild() on.

#5

It should be…? Here’s my explorer:

image

image

#6

Can you reply with your code and comment the line that is using WaitForChild(“Wheels”)?

#7

Here’s my full script:

local gui = script.Parent
local seat = gui.Seat

local kart = script.Parent.Parent.Parent.Parent.Parent

local runService = game:GetService("RunService")


local motorFR = kart:WaitForChild("Wheels"):WaitForChild("AxelFR").Motor
local motorFL = kart:WaitForChild("Wheels").AxelFL.Motor
local motorRR = kart:WaitForChild("Wheels").AxelRR.Motor
local motorRL = kart:WaitForChild("Wheels").AxelRL.Motor

local servoFR = kart:WaitForChild("Wheels").ServoFR.Servo
local servoFL = kart:WaitForChild("Wheels").ServoFL.Servo

print(motorFR.AngularVelocity)

local throttle = 1
local steer = 0


function Init()
	motorFR.MotorMaxTorque = 10000
	motorFL.MotorMaxTorque = 10000
	motorRR.MotorMaxTorque = 10000
	motorRL.MotorMaxTorque = 10000

	while runService.RenderStepped:Wait() do
		Update()

	end
end

function Update()
	
	throttle = 1
	motorFR.AngularVelocity = 500 * throttle
	motorFL.AngularVelocity = -500 * throttle
	motorRR.AngularVelocity = 500 * throttle
	motorRL.AngularVelocity = -500 * throttle
end

Init()
#8

And this script is the ChassisScript, correct?

#9

No, this is the controls script. It’s a local script and you can see where it’s located in the images above.

#10

Is the ControlScript being moved to a descendent of the Player whenever the occupant of the seat changes? (PlayerGui, PlayerScripts, etc)

#11

It’s moved to the playergui in the chassis script here:

function PlayerConnect(weld) 
	if weld.Name == "SeatWeld" then
		local char = weld.Part1.Parent
		local plr = game.Players:FindFirstChild(char.Name)
		
		if plr ~= nil then
			local clone = script.SeatGui:Clone()
			clone.Parent = plr.PlayerGui
		end
	end
end
#12

Refer to this response to a similar situation and see if that helps:

Edit: If you still need help after reading this, feel free to shoot me a private message.

#13

For future reference for people who may run into a similar error.

I don’t know how I overlooked this in the original post, but the reference to kart was yielding because the client wasn’t given enough time to locate the resource (the kart).

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