No config file found, use defaults

[redoc123]

I updated src/config/index.js mongodb block as follows:

mongodb: {
doc: 'URL to mongodb.',
format: String,
default: 'mongodb://localhost:27017/koapi',
env: 'MONGO_URI'
}

Start up gives the following:

mongodb://localhost:27017/koapi -Failed to connect to Database. Error - TypeError: Cannot read property 'databaseName' of undefined

please suggest.