Nodejs npm start is not working in terminal

npm ERR! Linux 4.4.0-75-generic npm ERR! argv "/home/vg/.nvm/versions/node/v5.0.0/bin/node" "/home/vg/.nvm/versions/node/v5.0.0/bin/npm" "start" npm ERR! node v5.0.0 npm ERR! npm v3.3.6

npm ERR! missing script: start npm ERR! npm ERR! If you need help, you may report this error at: npm ERR! https://github.com/npm/npm/issues

npm ERR! Please include the following file with any support request: npm ERR! /home/vg/Documents/p2p-video-chat-webrtc/npm-debug.log

via Ganesh