# File lib/chef/run_list/run_list_expansion.rb, line 125
      def role_not_found(name, included_by)
        Chef::Log.error("Role #{name} (included by '#{included_by}') is in the runlist but does not exist. Skipping expand.")
        @missing_roles_with_including_role << [name, included_by]
        nil
      end