the default version of node in ubuntu is very old, 4.x
either add instruction on how to update or add it to the prerequisite script.
and update node-gyp-install as well
@ric96 Thanks for your suggestion and I will check it in ubuntu 14.04 64bit.
Or you can contribute it in https://github.com/webosose/build-webos/blob/master/scripts/prerequisites.sh