admin-console fails to initialize on 5.2.0.Beta1

Due to:

2009-09-17 11:59:18,970 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/admin-console]] (http-127.0.0.1-8080-1) Exception sending request initialized lifecycle event to listener instance of class org.jboss.on.embedded.LazyStartupListener
java.lang.RuntimeException: Could not create Component: org.jboss.seam.international.statusMessages
at org.jboss.seam.init.Initialization.addComponent(Initialization.java:1155)
at org.jboss.seam.init.Initialization.installComponents(Initialization.java:1071)
at org.jboss.seam.init.Initialization.init(Initialization.java:720)
at org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:34)
at org.jboss.on.embedded.LazyStartupListener.initialize(LazyStartupListener.java:182)
at org.jboss.on.embedded.LazyStartupListener.requestInitialized(LazyStartupListener.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:180)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.NoClassDefFoundError: [Lorg/hibernate/validator/InvalidValue;
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
at java.lang.Class.privateGetPublicMethods(Class.java:2547)
at java.lang.Class.privateGetPublicMethods(Class.java:2563)
at java.lang.Class.getMethods(Class.java:1410)
at org.jboss.seam.Component.hasAnnotation(Component.java:1115)
at org.jboss.seam.Component.<init>(Component.java:218)
at org.jboss.seam.Component.<init>(Component.java:205)
at org.jboss.seam.init.Initialization.addComponent(Initialization.java:1139)