try_to_load_dependency

# File activerecord/lib/active_record/fixtures.rb, line 766
      def try_to_load_dependency(file_name)
        require_dependency file_name
      rescue LoadError => e
        # Let's hope the developer has included it himself

        # Let's warn in case this is a subdependency, otherwise
        # subdependency error messages are totally cryptic
        if ActiveRecord::Base.logger
          ActiveRecord::Base.logger.warn("Unable to load #{file_name}, underlying cause #{e.message} \n\n #{e.backtrace.join("\n")}")
        end
      end