That did the trick, thx. I don't know if it should have been installed automaticly during installation of Mojito, or Shaker, but it didn't. And shakers getting-started instructions don't mention the installation of ycb.
I've got it working now.
QUOTE(Fabian Frank @ 8 Sep 2012 2:07 PM)
It seems that you are missing the YCB module: https://npmjs.org/package/ycb