dotenv file is not loading environment variables

Here is a single-line solution:

require('dotenv').config({ path: require('find-config')('.env') })

This will recurse parent directories until it finds a .env file to use.

You can also alternatively use this module called ckey inspired from one-liner above.

.env file from main directory.

# dotenv sample content
[email protected]
PASSWORD=iampassword123
API_KEY=1234567890

some js file from sub-directory

const ck = require('ckey');

const userName = ck.USER;     // [email protected]
const password = ck.PASSWORD; // iampassword123
const apiKey   = ck.API_KEY;  // 1234567890

This solved my issues in Node v8.14.1:

const path = require('path')
require('dotenv').config({ path: path.resolve(__dirname, '../.env') })

Simply doing require('dotenv').config({path:__dirname+'/./../../.env'}) resulted in a location that resolved as /some/path/to/env/./../../.env

How about use require('dotenv').config({path:__dirname+'/./../../.env'}) ?

Your problem seems to be the execution path.