Vision Cones disabled in Manikin - gives an error when i try use it

After i assemble a manikin into my model and try turn on the vision conesiwasgiven an error 'Could not access vision cones (missing model)'. Is it because of a missing file or due to my proe having only manikin lite. I dont know whether the version i am having is a lite. Also, if i need to have it upgraded, which version should i be buying to access just vision cones.