puppetlabs/puppet · error · SerializationError

Cannot create a %{type_name} from a %{arg_class}

Error message

Cannot create a %{type_name} from a %{arg_class}

What it means

Error "Cannot create a %{type_name} from a %{arg_class}" thrown in puppetlabs/puppet.

Source

Thrown at lib/puppet/pops/serialization/from_data_converter.rb:225

      with_value(builder, &block) if block_given?
      builder.resolve
    end

    def pcore_type_hash_to_value(pcore_type, value)
      case value
      when Hash
        # Complex object
        if value.empty?
          build(pcore_type.create)
        elsif pcore_type.implementation_class.respond_to?(:_pcore_init_from_hash)
          build_object(ObjectHashBuilder.new(pcore_type.allocate)) { value.each_pair { |key, elem| with(key) { convert(elem) } } }
        else
          build_object(ObjectArrayBuilder.new(pcore_type.allocate)) { value.each_pair { |key, elem| with(key) { convert(elem) } } }
        end
      when String
        build(pcore_type.create(value))
      else
        raise SerializationError, _('Cannot create a %{type_name} from a %{arg_class}') %
                                  { :type_name => pcore_type.name, :arg_class => value.class.name }
      end
    end
  end
end
end

View on GitHub (pinned to e227c27540)

When it happens

Trigger: Thrown at lib/puppet/pops/serialization/from_data_converter.rb:225 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/a27714c192ee979b. Report an issue: GitHub.