Error importing submodules

[pasine]

Whenever I try to run one of the examples provided, I receive this warning:

Please install it with 'npm install cylon-gpio'

While checking on my installed modules, I can see that cylon-gpio is installed as a submodule of cylon-firmata.
Is it correct? Should I install the dependency separately?

[edgarsilva]

You should install it as a separate dependency also. Since the main Cylon.js module makes use of it to register your devices and drivers.

[pasine]

I thought the submodule were enough. Thanks for clarify this.