Add note about `ActiveSupport::Configurable requirement ("undefined method `configure' for [YourAppName]:Module" error)

[xunker]

I found that this gem requires ActiveSupport::Configurable to be added to your application.rb, it may be worth adding a note about that to the Readme. This module may be included by default new Rails apps, but I am working with app that began with Rails 2.x and has been upgraded to Rails 5.2 and did not have it.

For any one who has had the error:

undefined method `configure' for [YourAppName]:Module

You will need to add include ActiveSupport::Configurable to your application.rb here:

# ...
module YourAppName # this will be the name of your app
  include ActiveSupport::Configurable # this is the line to add

  class Application < Rails::Application
# ...

[morgoth]

Looks like some issue during upgrade?
In Rails 5.2 apps there is no need for such addition

[morgoth]

@xunker if you can push some sample app that shows the problem, please do. I'll close it for now as I cannot reproduce