Error: Cannot find module 'gulp-sass' from code example
Example 1: Cannot find module 'node-sass'
sudo npm install --save-dev --unsafe-perm node-sass
Example 2: gulp serve Cannot find module 'gulp-sass'
change to version "gulp-sass": "3.0.0"
sudo npm install --save-dev --unsafe-perm node-sass
change to version "gulp-sass": "3.0.0"