Nothing is happening it should make a rope so the player can swing I need Help?

--// Services

local UserInput = game:GetService("UserInputService")


--// SwingPart

local SPart = script.Parent.Part


--// Animation

local hum = script.Parent.Humanoid
local SwingAnimation = script["Swing Animation"]
local SwingAnimationTrack = hum:LoadAnimation(SwingAnimation)
local ReleaseAnimation = script.ReleaseAnimation
local ReleaseAnimationTrack = hum:LoadAnimation(ReleaseAnimation)




--// Rope


local PlayerHand = script.Parent.LeftHand



--// KeyInput

UserInput.InputBegan:Connect(function(input)
    if input.KeyCode == Enum.KeyCode.R then
        Att0 = Instance.new("Attachment", SPart)
        Att1 = Instance.new("Attachment", script.Parent.LeftHand)
        Rope = Instance.new("RopeConstraint", script.Parent.LeftHand)
        Rope.Attachment0 = Att0
        Rope.Attachment1 = Att1 
    end 
end)