$ npm run watch
The command throws an error and stops running. I get this error message in my console:
> Uncaught Error: Cannot find module 'es6-promise'
Could someone guide me to fix this problem? Thanks in advance!
I guess you didn't run the install command for your npm packages right now or your updated your package.json file and the required package is missing on your local machine.
Simply run this command and try again:
$ npm install
If the error still comes up. Please remove the your ./node_modules directory in your project directory and run $ npm install again.