Running the development version using Node 4

[adl1995]

I have installed Node 4 using n as this was mentioned in the README.md file. But, I receive this error whenever I execute the npm run dev command:

npm ERR! Linux 4.4.0-42-generic
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "run" "dev"
npm ERR! node v4.0.0
npm ERR! npm  v2.14.2
npm ERR! code ELIFECYCLE
npm ERR! isomorphic500@2.0.0 dev: `NODE_ENV=development DEBUG=isomorphic500 nodemon index.js`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the isomorphic500@2.0.0 dev script 'NODE_ENV=development DEBUG=isomorphic500 nodemon index.js'.
npm ERR! This is most likely a problem with the isomorphic500 package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     NODE_ENV=development DEBUG=isomorphic500 nodemon index.js
npm ERR! You can get their info via:
npm ERR!     npm owner ls isomorphic500
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /Projects/JavaScript/ReactJS/isomorphic500/npm-debug.log