I have this problem below on old Rails app deploy:
[deprecated] I18n.enforce_available_locales will default to true in the future. If you really want to skip validation of your locale you can set I18n.enforce_available_locales = false to avoid this message.
gem install prawn_report ERROR: Could not find a valid gem 'prawn_report' (>= 0) in any repository ERROR: Possible alternatives: rake_report, ar_report, amazon_report, app_report, plain_record
Any suggestions to solve this problem are welcome.