node app.js
module.js:540
    throw err;
    ^

Error: Cannot find module 'mam.node.js'
    at Function.Module._resolveFilename (module.js:538:15)
    at Function.Module._load (module.js:468:25)
    at Module.require (module.js:587:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/home/ubuntu/workspace/SensorNode/utils/stream_mam.js:6:11)
    at Module._compile (module.js:643:30)
    at Object.Module._extensions..js (module.js:654:10)
    at Module.load (module.js:556:32)
    at tryModuleLoad (module.js:499:12)
    at Function.Module._load (module.js:491:3)
ubuntu@node0:~/workspace/SensorNode$ ls
app.js  LICENSE  package-lock.json  README.md  utils