Operators missing from text plugin in RM 5 RC

Hi all,

I compile RM 5.0 (Vega) from source to adjust the custom operators I wrote for my diploma thesis. While both of these is not a real problem, the text plugin does not seem to register its operators correctly. I installed the text plugin via the integrated update manager, as recommended on the webiste. The update manager shows the plugin as active, but I can't see any of its operators.

At startup, I get the following errors in the eclipse log:

[tt]
2010-02-09 09:25:08 CONFIG: Read extension state. (ManagedExtension.readConfiguration())
2010-02-09 09:25:08 CONFIG: Scanning plugins in /home/dotxp/dev/Java/RapidMiner/yale/Vega/lib/plugins. (Plugin.initAll())
2010-02-09 09:25:08 CONFIG: Loading renderers from 'Text Processing'. (RendererService.init())
2010-02-09 09:25:08 WARNING: Error initializing plugin: com.rapidminer.tools.plugin.PluginException: Cannot find parse rules 'com/rapidminer/resources/parseRulesTextProcessing.xml' for plugin Text Processing. (Plugin.registerAllPluginDescriptions())
  com.rapidminer.tools.plugin.PluginException: Cannot find parse rules 'com/rapidminer/resources/parseRulesTextProcessing.xml' for plugin Text Processing.
      com.rapidminer.tools.plugin.Plugin.registerDescriptions(Plugin.java:440)
      com.rapidminer.tools.plugin.Plugin.registerAllPluginDescriptions(Plugin.java:579)
      com.rapidminer.tools.plugin.Plugin.initAll(Plugin.java:748)
      com.rapidminer.RapidMiner.init(RapidMiner.java:379)
      com.rapidminer.gui.RapidMinerGUI.run(RapidMinerGUI.java:203)
      com.rapidminer.gui.RapidMinerGUI.main(RapidMinerGUI.java:519)
[/tt]

I'm not that experienced with RM development, yet. Maybe someone can give me a hint how I can debug this issue?

Thanks in advance,
regards,
Toby