npm start gives weird error 8 with Unexpected token ILLEGAL

[Oyindrila2305]

I am getting weird error 8 with below output while doing npm start:

SyntaxError: Unexpected token ILLEGAL
at Module._compile (module.js:439:25)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:902:3
npm ERR! weird error 8

npm WARN This failure might be due to the use of legacy binary "node"
npm WARN For further explanations, please read
/usr/share/doc/nodejs/README.Debian

npm ERR! not ok code 0

I have installed nodejs-legacy

$ which nodejs
/usr/bin/nodejs

Can somebody help with it.