Copy tool not working right? [closed]

cloning = false
local Targ
local targClone
local Dragger

function onClone(mouse)
    if not cloning then
        cloning = true
        Targ = mouse.Target
        targClone = Targ:Clone()
        targClone.Parent = game.Workspace
        targClone.Position = Targ.Position + Vector3.new(0,.4,0)    

        Dragger = Instance.new("Dragger")
        pcall(function() Dragger:MouseDown(targClone, Vector3.new(0, 0, 0), {targClone}) end)
        cloning = false
    end

end

function onMove(mouse)
    if Dragger then
        pcall(function() Dragger:MouseMove(targClone.UnitRay) end)
    else
        print(pcall(function() Dragger:MouseMove(targClone.UnitRay) end))
        wait(10)
    end
end


function onSelect(mouse)
    mouse.Button1Down:connect(function() onClone(mouse) end)
    mouse.Move:connect(function() onMove(mouse) end)
end

script.Parent.Selected:connect(onSelect)

This script is for a copy tool Im working on and its saying the Dragger value = nil, I don't understand why the value is nil.