Bring up a terminal and type node --version.
Node should respond with a version at or above 0.10.x.
If you require Node, go to nodejs.org and click on the big green Install button.
Bring up a terminal and type gulp --version.
If Gulp is installed it should return a version number at or above 3.9.x.
If you need to install/upgrade Gulp, open up a terminal and type in the following:
$ npm install --global gulp*This will install Gulp globally.
In terminal type in the following:
$ npm installServe up a local version of the site with gulp. Watch for changes & automatically refresh across devices by running
$ gulp serve