javascript - Error - Cannot find module 'config' -

i have mail configuration code in all.js.

now trying import in mail.js service, imported config module follows :-

mail.js

config = require('config'), 

all.js

mailer: {         auth: {             user: "xxxxxxx",             pass: "abc@123"         }     } 

gives me error cannot find module, module exists have checked it.

how solve this?

i used following code & worked :-

config = require('../config/config');