Errors Importing the WebDynpro_Quiz Tutorial

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I am using the Sneak Preview WAS with NWDS 2.0.4.

When I import the tutorial as per the instructions I get 41 delegation errors. An example is:

com.sap.tc.webdynpro.tutorials.quiz.Answer cannot be resolved (or is not a valid type) for the field InternalAnswer.delegate.

Whay do I have to do to fix this?

Error stacktrace:

com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: failed to created delegate

at com.sap.tc.webdynpro.progmodel.generation.DelegatingComponent.<init>(DelegatingComponent.java:51)

at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.doInit(ClientComponent.java:748)

at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.init(ClientComponent.java:333)

at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:341)

at com.sap.tc.webdynpro.clientserver.task.Task.createApplication(Task.java:181)

at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:494)

at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:49)

at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:239)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:130)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:92)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doGet(DispatcherServlet.java:35)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:373)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:250)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:319)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:297)

at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:696)

at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:221)

at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)

at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:146)

at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:37)

at com.sap.engine.core.cluster.impl6.session.UnorderedChannel$MessageRunner.run(UnorderedChannel.java:71)

at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)

at java.security.AccessController.doPrivileged(Native Method)

at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:94)

at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:140)

Caused by: java.lang.reflect.InvocationTargetException

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

at java.lang.reflect.Constructor.newInstance(Constructor.java:274)

at com.sap.tc.webdynpro.progmodel.generation.DelegatingComponent.<init>(DelegatingComponent.java:43)

... 26 more

Caused by: java.lang.Error: Unresolved compilation problems:

com.sap.tc.webdynpro.tutorials.quiz.Quiz cannot be resolved (or is not a valid type) for the field InternalQuiz.delegate

delegate cannot be resolved or is not a field

com.sap.tc.webdynpro.tutorials.quiz.Quiz cannot be resolved or is not a type

delegate cannot be resolved

at com.sap.tc.webdynpro.tutorials.quiz.wdp.InternalQuiz.<init>(InternalQuiz.java:59)

... 31 more