how to debug this mcollective error ?

syslog

2011-06-14T18:20:49.00000+02:00 [hostname.here] mcollectived[7774]: agents.rb:126:in `dispatch' Execution of test failed: Could not create instance of plugin test_agent: /usr/lib/ruby/1.8/mcollective/rpc/ddl.rb:46:in `initialize': (eval):57:in `initialize': compile error
2011-06-14T18:20:49.00000+02:00 [hostname.here] mcollectived[7774]: agents.rb:127:in `dispatch' /usr/lib/ruby/1.8/mcollective/pluginmanager.rb:69:in `[]'
2011-06-14T18:20:49.92722+02:00 [hostname.here] 		/usr/lib/ruby/1.8/mcollective/agents.rb: 103:in `timeout'
2011-06-14T18:20:49.92722+02:00 [hostname.here] 		/usr/lib/ruby/1.8/mcollective/agents.rb: 113:in `dispatch'
2011-06-14T18:20:49.92722+02:00 [hostname.here] 		/usr/lib/ruby/1.8/mcollective/agents.rb: 111:in `initialize'
2011-06-14T18:20:49.92722+02:00 [hostname.here] 		/usr/lib/ruby/1.8/mcollective/agents.rb: 111:in `new'
2011-06-14T18:20:49.92722+02:00 [hostname.here] 		/usr/lib/ruby/1.8/mcollective/agents.rb: 111:in `dispatch'
2011-06-14T18:20:49.92722+02:00 [hostname.here] 		/usr/lib/ruby/1.8/mcollective/runner.rb: 99:in `agentmsg'
2011-06-14T18:20:49.92722+02:00 [hostname.here] 		/usr/lib/ruby/1.8/mcollective/runner.rb: 79:in `run'
2011-06-14T18:20:49.92804+02:00 [hostname.here] 		/usr/lib/ruby/1.8/mcollective/runner.rb: 57:in `loop'
2011-06-14T18:20:49.92804+02:00 [hostname.here] 		/usr/lib/ruby/1.8/mcollective/runner.rb: 57:in `run'
2011-06-14T18:20:49.92804+02:00 [hostname.here] 		/usr/sbin/mcollectived: 49
2011-06-14T18:20:49.92804+02:00 [hostname.here] 		/usr/lib/ruby/1.8/mcollective/runner.rb: 41:in `daemonize'
2011-06-14T18:20:49.92804+02:00 [hostname.here] 		/usr/lib/ruby/1.8/mcollective/runner.rb: 33:in `fork'
2011-06-14T18:20:49.92804+02:00 [hostname.here] 		/usr/lib/ruby/1.8/mcollective/runner.rb: 33:in `daemonize'
2011-06-14T18:20:49.92804+02:00 [hostname.here] 		/usr/sbin/mcollectived: 40

test.ddl

metadata :name        => 'Brass Monkey',
         :description => 'Deploy packages. Unleash the Brass Monkey.',
         :author      => '[email protected]',
         :license     => 'other',
         :version     => '1.2',
         :url         => 'none',
         :timeout     => 30

action buildgem, :description => 'Build a Gem project' do
    input :name,
          :prompt      => 'Project name',
          :description => 'Name of the Gem project',
          :type        => :string,
          :optional    => false

    input :repo_dir,
          :prompt      => 'Repo dir',
          :description => 'Directory containing the Git repo',
          :type        => :string,
          :optional    => false

### it goes on, but it's just the same things over and over...

test.rb

module MCollective
    module Agent
        class Test<RPC::Agent
            metadata :name        => 'Brass Monkey',
                     :description => 'Deploy packages. Unleash the Brass Monkey.',
                     :author      => '[email protected]',
                     :license     => 'other',
                     :version     => '1.2',
                     :url         => 'none',
                     :timeout     => 30

            action 'buildgem' do
                buildgem
            end

### that worked BEFORE i tried to implement the .ddl goes here....