Not working with Gantry atm

Tried to make Gatry work with Grav as it is explained in the blog post but I’m getting an error message when trying to activate the theme.
https://gyazo.com/094de3be9bb138f0874868a82e9709c1

Gantry5 is not currently working with Grav. We are refactoring some stuff so that we can finish development of it in the next month or so.

thanks for the info