Problem with log4js configuration it say : Error: Problem with log4js configuration: ({ appenders: [ { type: 'console' }, { type: 'file', filename: 'logs/site.log' } ] }) - must have a property "appenders" of type object. at tests.forEach (/var/www/bot/node_modules/log4js/lib/configuration.js:38:15) at Array.forEach (native) at Configuration.throwExceptionIf (/var/www/bot/node_modules/log4js/lib/configuration.js:36:11) at new Configuration (/var/www/bot/node_modules/log4js/lib/configuration.js:199:10) at Object.configure (/var/www/bot/node_modules/log4js/lib/log4js.js:195:12) at Object.<anonymous> (/var/www/bot/site.js:10:8) at Module._compile (module.js:570:32) at Object.Module._extensions..js (module.js:579:10) at Module.load (module.js:487:32) at tryModuleLoad (module.js:446:12)