The rootDir Property
Define the workspace directory of your Nuxt.js application.
This property will be overwritten by the nuxt commands(nuxt start, nuxt build etc) if an argument is passed to them. Eg running
nuxt ./my-app/ will set the
rootDir to the absolute path of
./my-app/ from the current/working directory.
Because of that its normally not needed to configure this option unless you will use Nuxt.js programmatically.