I have just one thing to say
I've realised after many hours of research, I was all the time changing assimilate and not the compiler it's using : carcass.
So, in fact I already had your link SDK, but I changed previously the assimilate instead of the carcass file, what a shame! I'm shocked
However get still some error : I had lot of objects, and in order not to apply a skin to everything, I decided to convert all objects to a group which is considerared as an object. But now carcass just can't get there objects... Working on it, you'll have some new from me ;-)