Error running first webDynpro application

[ian_maxwell2]

I've been working on the WebDynpro tutuorial for building a simple welcome application. Assembling the application went ok and even deploying went ok, but when attempting to actaully run the applicaiton occurs an error occurs. I've listed out the stack trace details below.

Any help would be appreciated.

java.lang.NoClassDefFoundError: com/sap/tc/webdynpro/progmodel/gci/IGCIComponentDelegate

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Loader Info -

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ClassLoader name: [local/Welcome]

Parent loader name: [Frame ClassLoader]

References:

common:service:http;service:servlet_jsp

service:ejb

common:service:iiop;service:naming;service:p4;service:ts

service:jmsconnector

library:jsse

library:servlet

common:library:IAIKSecurity;library:activation;library:mail;library:tc_secssl

library:ejb20

library:j2eeca

library:jms

library:opensql

library:webservices_lib

interface:resourcecontext_api

interface:webservices

sap.com/tc_wddispwda

sap.com/tc_wdcorecomp

service:webdynpro

service:sld

library:tc_ddicddicservices

library:com.sap.aii.proxy.framework

library:tc_graphicsigs

library:com.sap.mw.jco

library:com.sap.lcr.api.cimclient

library:sapxmltoolkit

library:com.sap.aii.util.rb

library:com.sap.util.monitor.jarm

library:tc_ddicddicruntime

common:library:com.sap.security.api.sda;library:com.sap.security.core.sda;library:security.class;service:com.sap.security.core.ume.service;service:connector;service:dbpool;service:keystore;service:security;service:userstore

library:com.sap.aii.util.xml

library:tc_colapi

library:com.sap.aii.util.misc

library:tc~cmi

library:tc_colruntime

Resources:

C:\usr\sap\J2E\JC00\j2ee\cluster\server0\apps\local\Welcome\webdynpro\public\lib\app.jar

Loading model: {parent,references,local}

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The error occurred while trying to load "com.sap.examples.welcome.wdp.InternalWelcomeComponent".

at com.sap.engine.frame.core.load.ReferencedLoader.loadClass(ReferencedLoader.java:326)

at com.sap.tc.webdynpro.progmodel.generation.DelegatingComponent.<init>(DelegatingComponent.java:42)

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)

[Former Member · Accepted solution]

Check if you have the exactly same Web Dynpro version (service pack number) in your NetWeaver Developer Studio and the J2EE engine where your application is deployed.

If this is the case, do a full rebuild of the application such that all generated classes are rebuild, deploy and run again.

Does this solve the problem?

Armin

[ian_maxwell2 · Accepted solution]

It Worked. It was the version being out of synch.

Thanks.

[Former Member · Accepted solution]

Ian,

Can you share on how to check the version and making it insynch ? I have the same problem and donot know the steps to proceed.

Thanks

Swami Bala

[Former Member]

Hi..

You can compare your Netweaver and J2EE server versions by the following:

J2EE server - WebDynpro console has about server link with Build ID

NWDS - Use About menu to see the version and build.

I would recommend installing the NWSD workstation from service marketplace. Its on the master J2EE DVDs.

[Former Member]

Thanks