Make sure you are using recent versions of node and npm. No problems have been found with node>=7.10 or 6.0. and npm>=3.10.
Make sure you are using yarn>=0.23
From the command line run the following:
yarn install(this will download all dependencies)yarn start(this will start the webpack development server with hot reload)yarn run storybook(this will start a separate webpack server for storybook, also with hot reloading)