module.js:550

    throw err;
    ^


Error: Cannot find module './config.json'

    at Function.Module._resolveFilename (module.js:548:15)

    at Function.Module._load (module.js:475:25)

    at Module.require (module.js:597:17)

    at require (internal/module.js:11:18)

	at Object.<anonymous> (/app/index.js:15:18)

    at Module._compile (module.js:653:30)

    at Object.Module._extensions..js (module.js:664:10)

    at Module.load (module.js:566:32)

    at tryModuleLoad (module.js:506:12)

    at Function.Module._load (module.js:498:3)