Puppet users - May 2010 - Custom Type fails with "No namevar for..."

Hi,

I''m trying to create a custom type for Puppet 0.25.4. The type is
located in a custom module and looks like this:

gentryx@rei ~/puppet-gentryx $ cat
modules/gentoo_useflags/lib/puppet/type/useflag.rb
module Puppet
  newtype(:useflag) do
    newparam(:name) do
      desc "Foo Bar"
      isnamevar
    end

    ensurable do
      newvalue(:set) do
      end

      newvalue(:unset) do
      end

      defaultto :unset
    end

    def retrieve
      :unset
    end
  end
end

If I try to use the type in a class, for instance like this...

gentryx@rei ~/puppet-gentryx $ cat modules/gentoo_useflags/manifests/init.pp 
class useflagtest  {
  useflag { "foo bar":
    ensure => set
  }
}

...I get an error when applying the configuration:

rei ~ # puppetd -v --test
info: Retrieving plugin
info: Loading facts in hardware_platform
info: Loading facts in hardware_platform
err: Could not retrieve catalog from remote server: Error 400 on SERVER: No
namevar for useflag at /etc/puppet/modules/gentoo_useflags/manifests/init.pp:4
on node rei.informatik.uni-erlangen.de
warning: Not using cache on failed catalog
err: Could not retrieve catalog; skipping run

Which leaves me a little puzzled since I''m calling
"isnamevar". According to what I saw in Puppet''s source code,
this
/should/ work, but apparently I''m missing something important.

Any ideas, what might be causing this error?

Thanks in advance
-Andreas

ps: the full source of the test module can be found at
http://gentryx.de/~gentryx/gentoo_useflags.tbz

-- 
=========================================================Andreas Schäfer
HPC and Grid Computing
Chair of Computer Science 3
Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany
+49 9131 85-27910
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