Rails: No connection pool for ActiveRecord::Base

Question

I\'m trying to use rails 4.2.6 to develop an app. I\'m trying to use postgres for database. Server starts fine but when I try loading a page it throws this \"No connection p

Answer 1

I've encountered the same problem when I try to access the Model before creating the DataBase.

Make sure you run rake db:migrate at least once.

If you already run migration then check the Database as mentioned in previous answers.