Required files
abstract_controller
action_dispatch
action_view
action_controller/vendor/html-scanner
active_support/concern
active_support/core_ext/class/attribute_accessors
active_support/core_ext/load_error
active_support/core_ext/module/attr_internal
active_support/core_ext/module/delegation
active_support/core_ext/name_error
active_support/inflector