I am also getting this issue
[ezra@kiwidev community]$ node app.js
info: NodeBB v0.4.2 Copyright (C) 2013-2014 DesignCreatePlay Inc.
info: This program comes with ABSOLUTELY NO WARRANTY.
info: This is free software, and you are welcome to redistribute it under certain conditions.
info:
info: Time: Mon May 12 2014 06:31:33 GMT+0400 (MSD)
info: Initializing NodeBB v0.4.2
info: * using configuration stored in: /var/www/alternative-gaming/community/config.json
info: * using mongo store at 127.0.0.1:28900
info: * using themes stored in: /var/www/alternative-gaming/community/node_modules
Failed to load c++ bson extension, using pure JS version
error: auth failed
config.json
{
"base_url": "http://community.ag-aus.org",
"port": "4680",
"use_port": false,
"secret": "XXX",
"bind_address": "127.0.0.1",
"database": "mongo",
"mongo": {
"host": "127.0.0.1",
"port": "28900",
"username": "XXX",
"password": "XXX",
"database": "XXX"
},
"bcrypt_rounds": 12,
"upload_path": "/public/uploads",
"relative_path": ""
}