puppetlabs/puppet · error · ArgumentError

The type name cannot be nil, if title is given

Error message

The type name cannot be nil, if title is given

What it means

Error "The type name cannot be nil, if title is given" thrown in puppetlabs/puppet.

Source

Thrown at lib/puppet/pops/types/type_factory.rb:443

    ranges.empty? ? PSemVerType::DEFAULT : PSemVerType.new(ranges)
  end

  # Produces a PResourceType with a String type_name A PResourceType with a nil
  # or empty name is compatible with any other PResourceType.  A PResourceType
  # with a given name is only compatible with a PResourceType with the same
  # name.  (There is no resource-type subtyping in Puppet (yet)).
  #
  def self.resource(type_name = nil, title = nil)
    case type_name
    when PResourceType
      PResourceType.new(type_name.type_name, title)
    when String
      type_name = TypeFormatter.singleton.capitalize_segments(type_name)
      raise ArgumentError, "Illegal type name '#{type_name}'" unless type_name =~ Patterns::CLASSREF_EXT

      PResourceType.new(type_name, title)
    when nil
      raise ArgumentError, 'The type name cannot be nil, if title is given' unless title.nil?

      PResourceType::DEFAULT
    else
      raise ArgumentError, "The type name cannot be a #{type_name.class.name}"
    end
  end

  # Produces PClassType with a string class_name.  A PClassType with
  # nil or empty name is compatible with any other PClassType.  A
  # PClassType with a given name is only compatible with a PClassType
  # with the same name.
  #
  def self.host_class(class_name = nil)
    if class_name.nil?
      PClassType::DEFAULT
    else
      PClassType.new(class_name.sub(/^::/, ''))
    end

View on GitHub (pinned to e227c27540)

When it happens

Trigger: Thrown at lib/puppet/pops/types/type_factory.rb:443 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/5159aeb8de8df804. Report an issue: GitHub.