puppetlabs/puppet · error · Puppet::DevError

you must specify title patterns when there are two or more k

Error message

you must specify title patterns when there are two or more key attributes

What it means

Error "you must specify title patterns when there are two or more key attributes" thrown in puppetlabs/puppet.

Source

Thrown at lib/puppet/pops/resource/resource_type_impl.rb:167

        # Here it is silently ignored.
        nil
      when 1
        if @title_patterns_hash.nil?
          [[/(.*)/m, [[@key_attributes.first]]]]
        else
          # TechDebt: The case of having one namevar and an empty title patterns is unspecified behavior in puppet.
          # Here, it may lead to an empty map which may or may not trigger the wanted/expected behavior.
          #
          @title_patterns_hash.map { |k, v| [k, v.map { |n| [n.to_sym] }] }
        end
      else
        if @title_patterns_hash.nil? || @title_patterns_hash.empty?
          # TechDebt: While title patterns must be specified when more than one is used, they do not have
          # to match/set them all since some namevars can be omitted (to support the use case in
          # the 'package' type where 'provider' attribute is handled as part of the key without being
          # set from the title.
          #
          raise Puppet::DevError, _("you must specify title patterns when there are two or more key attributes")
        end

        @title_patterns_hash.nil? ? [] : @title_patterns_hash.map { |k, v| [k, v.map { |n| [n.to_sym] }] }
      end
  end

  # Override CompilableResource inclusion
  def is_3x_ruby_plugin?
    false
  end

  # Answers if the parameter name is a parameter/attribute of this type
  # This is part of the Puppet::Type API
  # Check if used when compiling (it is triggered in an apply)
  #
  def valid_parameter?(name)
    @attributes.include?(name) || METAPARAMSET.include?(name)
  end

View on GitHub (pinned to e227c27540)

When it happens

Trigger: Thrown at lib/puppet/pops/resource/resource_type_impl.rb:167 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of puppetlabs/puppet@e227c27540 (2026-08-21). Data as JSON: /api/errors/9364076a427763ab. Report an issue: GitHub.