Why does the custom gui not work on teleport?

So, I'm trying to make a custom GUI for a teleporter to another place. But, it doesn't work. Help?

code: (no error)

LocalScript:

local service = game:GetService("TeleportService")
service:SetTeleportGui(script.Parent.ScreenGui) -- this doesn't work

Script:

local service = game:GetService("TeleportService")

script.Parent.ClickDetector.MouseClick:Connect(function(p)
	service:Teleport(0000000000,p) --i dont wanna show the id
end)

Also trying to look here on the Developer API Reference

b_mni