gnome3 -= jhbuild problem


I try to build Gnome3 from source witj jhbuild.
I’m trying to follow this tutorial : Getting Started

But now when I do jhbuild sanitycheck I see this message :
jhbuild: could not load config file, /home/roelof/.jhbuildrc is missing

that file can be found at : /home/roelof/desktop/jhbuild

How to solve this ?