Node js connot find "./" error

module.js:327
    throw err;
    ^

Error: Cannot find module './config'
    at Function.Module._resolveFilename (module.js:325:15)
    at Function.Module._load (module.js:276:25)
    at Module.require (module.js:353:17)
    at require (internal/module.js:12:17)
    at Object.<anonymous> (/Users/dj/helpers/connect_db.js:3:14)
    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Module.require (module.js:353:17)
    at require (internal/module.js:12:17)
    at Object.<anonymous> (/Users/dj/app.js:8:1)
    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
MacBook-Pro:API djaymac$ node app.js
/Users/dj/helpers/connect_db.js:3
var config = require(‘../config');
                     ^

SyntaxError: Unexpected token ILLEGAL
    at exports.runInThisContext (vm.js:53:16)
    at Module._compile (module.js:373:25)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Module.require (module.js:353:17)
    at require (internal/module.js:12:17)
    at Object.<anonymous> (/Users/dj/app.js:8:1)
    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)

so I am new to node js and installed all the required libraries for this code but now i get this error, trying to run a small node js backend server using node app.js

via TestDjay