Error....Plz help

[Former Member]

Hi Experts,

In my Application i have two screens.

On one screen i have a button named DELETE.When i click this button it should navigate to the next screen which has the layout and functionality.

But when i click on the first screen button.I get the following Exception.

com.sap.tc.webdynpro.services.exceptions.CreationFailedException: Cannot create view element implementation com.sap.tc.webdynpro.clientserver.uielib.standard.impl.Caption

* at com.sap.tc.webdynpro.progmodel.view.ViewElementFactory.createElement(ViewElementFactory.java:161)*

* at com.sap.tc.webdynpro.progmodel.view.View.createElement(View.java:177)*

* at com.test.testapp.wdp.InternalDeleteOperation.wdCreateUITreeForGroup(InternalDeleteOperation.java:282)*

* at com.test.testapp.wdp.InternalDeleteOperation.wdCreateUITree(InternalDeleteOperation.java:259)*

* at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.createUITree(DelegatingView.java:74)*

* at com.sap.tc.webdynpro.progmodel.view.View.initController(View.java:443)*

* at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)*

* at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:709)*

* at com.sap.tc.webdynpro.progmodel.view.ViewManager.bind(ViewManager.java:555)*

* at com.sap.tc.webdynpro.progmodel.view.ViewManager.makeVisible(ViewManager.java:789)*

* at com.sap.tc.webdynpro.progmodel.view.ViewManager.performNavigation(ViewManager.java:296)*

* at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.navigate(ClientApplication.java:767)*

* at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.navigate(ClientComponent.java:881)*

* at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.doNavigation(WindowPhaseModel.java:498)*

* at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.processRequest(WindowPhaseModel.java:144)*

* at com.sap.tc.webdynpro.clientserver.window.WebDynproWindow.processRequest(WebDynproWindow.java:335)*

* at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:143)*

* at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:313)*

* at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:713)*

* at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:666)*

* at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:250)*

* at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:149)*

* at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:62)*

* at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:53)*

* at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)*

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

* at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)*

* at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)*

* at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:387)*

* at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:365)*

* at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:944)*

* at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:266)*

* at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)*

* at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:175)*

* at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)*

* at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)*

* 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:100)*

* at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)*

Caused by: java.lang.reflect.InvocationTargetException

* at sun.reflect.GeneratedConstructorAccessor2091.newInstance(Unknown Source)*

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

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

* at com.sap.tc.webdynpro.progmodel.view.ViewElementFactory.createElement(ViewElementFactory.java:151)*

* ... 39 more*

Caused by: com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: View: Cannot add element with duplicate ID "Header" of type com.sap.tc.webdynpro.clientserver.uielib.standard.impl.Caption

* at com.sap.tc.webdynpro.progmodel.view.View.addElement(View.java:735)*

* at com.sap.tc.webdynpro.progmodel.view.ViewElement.<init>(ViewElement.java:40)*

* at com.sap.tc.webdynpro.progmodel.view.UIElement.<init>(UIElement.java:168)*

* at com.sap.tc.webdynpro.clientserver.uielib.standard.impl.AbstractCaption.<init>(AbstractCaption.java:87)*

* at com.sap.tc.webdynpro.clientserver.uielib.standard.impl.Caption.<init>(Caption.java:83)*

* ... 43 more*

Please help me out so that i can proceed further.

I have checked the navigation part like inbounds and outbounds,all are given correctly.

help me out to resolve this issue.

Regards,

Chandrashekar.

[Former Member]

Since the error has occured while creating an element, make sure that the element name is unique accross your views. You can follow an approach of "Increment Counter" appended to the ElementID name u provide. In short, be certain to keep the name Uinque.

Regards,

Kunal Kotak

[Former Member]

Hi,

Cannot add element with duplicate ID "Header" of type com.sap.tc.webdynpro.clientserver.uielib.standard.impl.Caption

Above error clearly mention that the UIelement is duplicated, if you are creating UI Elements at runtime make sure that the same id is not used mulitple time and create the UI element only once by making use of the parameter isFirstTime which is part of the wdDoModify Method.

Regards

Ayyapparaj

[Former Member]

Hi Chandrasekhar

Are you using another other operation in the onAction event of button other than navigation statement

wdThis.wdfireplug<>();

Best Regards

Chaitanya.A

[former_member751941]

Hi chandrashekar,

In Outline check the <b>id </b> property of the <b> Caption-Header </b> view elements from the properties window it seems some of the ids are duplicate it should be unique.

Other wise delete the container elements and design the view layout once again.

Regards,

Mithu