TurkerGaze: npm start failed with the following error - NPM and Nodejs are latest versions.

When I tried executing npm start it failed with the following error. NPM and Nodejs are latest versions. I am trying this on Ubuntu 16.04 64-bit.

TurkerGaze@0.0.2 start /home/amar/Desktop/Gaze Detector/TurkerGaze-master node ./node_modules/webpack-dev-server/bin/webpack-dev-server.js

sh: 1: node: not found

npm ERR! Linux 4.4.0-21-generic npm ERR! argv “/usr/bin/nodejs” “/usr/bin/npm” “start” npm ERR! node v4.2.6 npm ERR! npm v3.5.2 npm ERR! file sh npm ERR! code ELIFECYCLE npm ERR! errno ENOENT npm ERR! syscall spawn npm ERR! TurkerGaze@0.0.2 start: node ./node_modules/webpack-dev-server/bin/webpack-dev-server.js npm ERR! spawn ENOENT npm ERR! npm ERR! Failed at the TurkerGaze@0.0.2 start script ‘node ./node_modules/webpack-dev-server/bin/webpack-dev-server.js’. npm ERR! Make sure you have the latest version of node.js and npm installed. npm ERR! If you do, this is most likely a problem with the TurkerGaze package, npm ERR! not with npm itself. npm ERR! Tell the author that this fails on your system: npm ERR! node ./node_modules/webpack-dev-server/bin/webpack-dev-server.js npm ERR! You can get information on how to open an issue for this project with: npm ERR! npm bugs TurkerGaze npm ERR! Or if that isn’t available, you can get their info via: npm ERR! npm owner ls TurkerGaze

npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request: npm ERR! /home/amar/Desktop/Gaze Detector/TurkerGaze-master/npm-debug.log

Can somebody help me with this