You must not have put ejb.jar into the classpath.

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> Hi, All
>     When I deployed the tutorial of tapestry to Tomcat, the tutorial run well 
> except when i use the inspector in Workbench and press the Engine button, the 
> following error occured. Hope somebody can do me a favor.
> 
> PS. I'm using tomcat 4.0.3-LE-jdk1.4 version and i put tapestry....jar, 
> log4j-core.jar, tapestry.contrib...jar and jfreechar, jcomon.jar into tutorial's 
> WEB-INF/lib.(Have anybody successfule run tapestry under tomcat and jdk1.4?)
> 
> Best regards.
>                                                                                      
>                   
> Alex
> ====================================================================
> An exception has occured. 
> You may continue by restarting the session. 
> 
>       Name: com.primix.tapestry.RequestCycleException 
>       Message: Unable to resolve property engineByteCount of 
> com.primix.tapestry.inspector.ShowEngine@718242[Inspector/showEngine]. 
>       component: com.primix.tapestry.inspector.Inspector@a7b0bf[Inspector] 
>          
>       Name: com.primix.tapestry.BindingException 
>       Message: Unable to resolve property engineByteCount of 
> com.primix.tapestry.inspector.ShowEngine@718242[Inspector/showEngine]. 
>       binding: PropertyBinding[Inspector/showEngine engineByteCount] 
>          
>       Name: com.primix.tapestry.util.DynamicInvocationException 
>       Message: Could not invoke method getEngineByteCount on 
> com.primix.tapestry.inspector.ShowEngine@718242[Inspector/showEngine]. 
>          
>       Name: java.lang.reflect.InvocationTargetException 
>       Message:  
>          
>       Name: java.lang.NoClassDefFoundError 
>       Message: javax/ejb/EJBObject 
>       Trace:   
>         a.. 
> com.primix.tapestry.record.PageRecorder.persistValue(PageRecorder.java:245) 
>         b.. 
> com.primix.tapestry.record.SimplePageRecorder.writeExternal(SimplePageRecorder.j
> ava:232) 
>         c.. 
> java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1265) 
>         d.. 
> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1243) 
>         e.. 
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052) 
>         f.. java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278) 
>         g.. 
> com.primix.tapestry.engine.SimpleEngine.writeExternal(SimpleEngine.java:132) 
>         h.. 
> java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1265) 
>         i.. 
> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1243) 
>         j.. 
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052) 
>         k.. java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278) 
>         l.. 
> com.primix.tapestry.inspector.ShowEngine.buildSerializedEngine(ShowEngine.java:8
> 7) 
>         m.. 
> com.primix.tapestry.inspector.ShowEngine.getSerializedEngine(ShowEngine.java:70) 
>         n.. 
> com.primix.tapestry.inspector.ShowEngine.getEngineByteCount(ShowEngine.java:126) 
>         o.. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
>         p.. 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
>         q.. 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.jav
> a:25) 
>         r.. java.lang.reflect.Method.invoke(Method.java:324) 
>         s.. 
> com.primix.tapestry.util.prop.PropertyAccessor.get(PropertyAccessor.java:100) 
>         t.. 
> com.primix.tapestry.util.prop.PropertyHelper.get(PropertyHelper.java:413) 
>         u.. 
> com.primix.tapestry.binding.PropertyBinding.getObject(PropertyBinding.java:161) 
>         v.. com.primix.tapestry.components.Insert.render(Insert.java:158) 
>         w.. com.primix.tapestry.BaseComponent.render(BaseComponent.java:396) 
>         x.. 
> com.primix.tapestry.AbstractComponent.renderWrapped(AbstractComponent.java:622) 
>         y.. 
> com.primix.tapestry.components.InsertBlock.render(InsertBlock.java:105) 
>         z.. > 
>com.primix.tapestry.AbstractComponent.renderWrapped(AbstractComponent.java:622) 
>         aa.. 
> com.primix.tapestry.components.InsertWrapped.render(InsertWrapped.java:57) 
>         ab.. com.primix.tapestry.BaseComponent.render(BaseComponent.java:396) 
>         ac.. 
> com.primix.tapestry.AbstractComponent.renderWrapped(AbstractComponent.java:622) 
>         ad.. 
> com.primix.tapestry.components.InsertWrapped.render(InsertWrapped.java:57) 
>         ae.. com.primix.tapestry.BaseComponent.render(BaseComponent.java:396) 
>         af.. 
> com.primix.tapestry.AbstractComponent.renderWrapped(AbstractComponent.java:622) 
>         ag.. com.primix.tapestry.html.Body.render(Body.java:253) 
>         ah.. 
> com.primix.tapestry.AbstractComponent.renderWrapped(AbstractComponent.java:622) 
>         ai.. com.primix.tapestry.html.Shell.render(Shell.java:237) 
>         aj.. com.primix.tapestry.BaseComponent.render(BaseComponent.java:396) 
>         ak.. com.primix.tapestry.AbstractPage.renderPage(AbstractPage.java:265) 
>         al.. 
> com.primix.tapestry.engine.RequestCycle.renderPage(RequestCycle.java:407) 
>         am.. 
> com.primix.tapestry.engine.AbstractEngine.renderResponse(AbstractEngine.java:577
> ) 
>         an.. 
> com.primix.tapestry.engine.ActionService.service(ActionService.java:168) 
>         ao.. 
> com.primix.tapestry.engine.AbstractEngine.service(AbstractEngine.java:706) 
>         ap.. 
> com.primix.tapestry.ApplicationServlet.doService(ApplicationServlet.java:203) 
>         aq.. 
> com.primix.tapestry.ApplicationServlet.doGet(ApplicationServlet.java:168) 
>         ar.. javax.servlet.http.HttpServlet.service(HttpServlet.java:740) 
>         as.. javax.servlet.http.HttpServlet.service(HttpServlet.java:853) 
>         at.. 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilt
> erChain.java:247) 
>         au.. 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.
> java:193) 
>         av.. 
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:2
> 43) 
>         aw.. 
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566) 
>         ax.. 
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) 
>         ay.. 
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) 
>         az.. 
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:1
> 90) 
>         ba.. 
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566) 
>         bb.. 
> org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246) 
>         bc.. 
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564) 
>         bd.. 
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) 
>         be.. 
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) 
>         bf.. 
> org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2343) 
>         bg.. 
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180) 
>         bh.. 
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566) 
>         bi.. 
> org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java
> :170) 
>         bj.. 
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564) 
>         bk.. 
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170) 
>         bl.. 
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564) 
>         bm.. 
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468) 
>         bn.. 
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564) 
>         bo.. 
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) 
>         bp.. 
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) 
>         bq.. 
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174
> ) 
>         br.. > 
>org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566) 
>         bs.. 
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) 
>         bt.. 
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) 
>         bu.. 
> org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1012
> ) 
>         bv.. 
> org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1107) 
>         bw.. java.lang.Thread.run(Thread.java:536) 
>      
> 
> 
> 

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