problem with cocoon3 cocoon-sample running under org.codehaus.cargo:cargo-maven2-plugin

[Piratenvisier]

When I try to start 
/homeerweitert/java/wicket/appfuse/makler/cocoon-sample-webapp/target/cocoon-sample-webapp-3.0.0-beta-1-SNAPSHOT.war 
with the above plugin I get the error:

[INFO] [talledLocalContainer] SEVERE: Error listenerStart
[INFO] [talledLocalContainer] Aug 10, 2013 12:14:01 PM 
org.apache.catalina.core.StandardContext startInternal
[INFO] [talledLocalContainer] SEVERE: Context [/sample] startup failed 
due to previous errors

what do I have to change ?