why cant A players Mouse Get Humanoid when click?

So I am Working On A gun And right Now I Need it to Find Humanoid Player When Clicking On It.

heres my script:

local mouse = game.Players.LocalPlayer:GetMouse() -- mouse
local Handle = script.Parent.Handle
local Gun = script.Parent
local ShootSound = script.Parent.Handle.Shoot

Gun.Activated:Connect(function() -- Activates the gun (Mouse Clicked While Equip)
    mouse.Hit:Connect(function(Target)
        if Target:FindFirstChild("Humanoid") then 
            game.Players.LocalPlayer.Character.Humanoid:TakeDamage(10)
            ShootSound:Play()   -- This is a Gun Shoot Sound 
        else
            ShootSound:Play()
            print("Target Not Humanoid")
        end
    end)
end)

The Thing is that At It dont show what line it is and It Gives a error that says (Connect is Not A vaild member of CFrame ) And I never Took CFrame on the Line.

Anyone? Help