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Former Member
Jun 03, 2009 at 04:08 PM

WDRuntimeException: Duplicate instance exception

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Hello,

I am not able to figure out this exception.

com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Duplicate instance exception: There is already an instance of view CourseDetails in component CourseRegistrationComp.
	at com.sap.tc.webdynpro.progmodel.controller.Component.addViewController(Component.java:137)
	at com.sap.tc.webdynpro.progmodel.view.View.setUsage(View.java:816)
	at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:706)
	at com.sap.tc.webdynpro.progmodel.view.ViewManager.bindRoot(ViewManager.java:579)
	at com.sap.tc.webdynpro.progmodel.view.ViewManager.init(ViewManager.java:155)
	at com.sap.tc.webdynpro.clientserver.window.WebDynproWindow.doOpen(WebDynproWindow.java:295)
	at com.sap.tc.webdynpro.clientserver.window.ApplicationWindow.handle(ApplicationWindow.java:258)
	at com.sap.tc.webdynpro.clientserver.window.ApplicationWindow.handleWindowEvents(ApplicationWindow.java:238)
	at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:149)
	at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:321)
	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:386)
	at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:364)
	at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:1039)
	at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:265)
	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:102)
	at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:172)

how to fix this...

Thanks

Srinivas