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

If you are experiencing this error from a rake task, chances are you are not running the :environment task before your task.

Changing:

task :task_name do
end

to:

task task_name: :environment do
end

Should fix the issue.