{
  "mail": {
  "password": "app_password"
   }
}

/Users/tzhong/Documents/vidly-
backend/node_modules/config/lib/config.js:203
throw new Error('Configuration property "' + property + '" is not
defined');
^

Error: Configuration property "mail.password" is not defined
    at Config.get (/Users/tzhong/Documents/vidly-
 backend/node_modules/config/lib/config.js:203:11)

Vidly evn is : Vidly backend -- development
 Vidly mail server is : dev-mail-server
 Mail-password is : 12345
 NODE_ENV is : undefined
 app: development
 Mongan enabled...
 Listenning 3000 port ...