WD - Adobe Interactive Form - Bound data node must not be empty!

Hello,
i have a problem to display the result of a search view in an Adobe PDF. I got the error-message "Bound data node Node(ResultPDFView.FlightList) of InteractiveForm must not be empty!"
To develop a prototyp i have changed the Flight-List example. I have added a new view, mapped the data of the model to the data of the customController. At the wdInit-Method i have initialized the nodes.
//@@begin javadoc:wdDoInit()
/** Hook method called to initialize controller. */
//@@end
public void wdDoInit()
    //@@begin wdDoInit()
     // Create a new element in the Bapi_Flight_Getlist_Input node
     Bapi_Flight_Getlist_Input bapiInput = new Bapi_Flight_Getlist_Input();
     wdContext.nodeBapi_Flight_Getlist_Input().bind(bapiInput);
     // Create new elements in the Destination_From and Destination_To nodes
     bapiInput.setDestination_From(new Bapisfldst());
     bapiInput.setDestination_To(new Bapisfldst());
     // Create a new element in the Bapi_Flight_Getlist_Output node
     Bapi_Flight_Getlist_Output bapiOutput = new Bapi_Flight_Getlist_Output();
     wdContext.nodeOutput().bind(bapiOutput);
     // Create a new element in the Flight_List node
     Bapisfldat     bapiFlightList = new Bapisfldat();
     wdContext.nodeFlight_List().bind(bapiFlightList);
     bapiFlightList.setAirline("LH");
    //@@end
If i start the application i can see all the information (the airline) in my PDF-Dokument, but after the Bapi-Call
i got the error message !
//@@begin javadoc:onActionSearch(ServerEvent)
/** Declared validating event handler. */
//@@end
public void onActionSearch(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )
    //@@begin onActionSearch(ServerEvent)
     wdThis.wdGetFlightListCustController().executeBapi_Flight_Getlist_Input();
    //@@end
Where is the problem ? Must i mapp the result element to the currentContextElement ?
Thanks for help !
Regards
Jürgen Berndt

Hi Jurgen
Were you able to find out the solution for this? I am getting the same error on a much simpler application - I am trying to do the tutorial given on SAP Help Site at
http://help.sap.com/saphelp_nw04/helpdata/en/dc/f1783fe3263042e10000000a114084/frameset.htm
Thanks
Pankaj

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WD - Adobe Interactive Form - Bound data node must not be empty!

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