Node Sass does not yet support your current environment
Error: Node Sass does not yet support your current environment: OS X 64-bit with Unsupported runtime (72)
Solución
npm --depth 9999 update
npm rebuild node-sass
Error: Node Sass does not yet support your current environment: OS X 64-bit with Unsupported runtime (72)
npm --depth 9999 update
npm rebuild node-sass