Im making a raycasting gun, but I keep on getting the same error, what is the problem?

--// Varialbes \\--
local player = game.Players.LocalPlayer
local mouse = player:GetMouse()

local tool = script.Parent

tool.Equipped:Connect(function(equip)
    print("Player has equiped the gun!")

    mouse.Button1Down:Connect(function()
        local ray = Ray.new(tool.Handle.CFrame.p, (mouse.Hit.p - tool.Handle.CFrame.p).unit * 300)
        local part, position = workspace:FindPartOnRayWithIgnoreList(ray, {player.Character})
        if part then print(part.Name)

        end
    end)
end)

When making a ray with an ignore list, the second parameter has to be a table.