Cannot find symbol

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Cannot find symbol

by 666lawyer :: Rate this Message:

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I am doing the tutorial one of:  http://www.netbeans.org/kb/60/web/inserts-updates-deletes.html,
With postgresql and Netbeans 6,5, but when I have to add code after giving double click on the drag and drop list, where says ddAgente.getSelected () and form1 tells me cannot find symbol???  

public void ddAgente_processValueChange(ValueChangeEvent vce) {
         Object selectedAgenteId = ddAgente.getSelected();
       try {
           agenteDataProvider.setCursorRow(agenteDataProvider.findFirst("AGENTE.ID", selectedAgenteId));
           getSessionBean1().getLineaRowSet().setObject(1, selectedAgenteId);
           lineaDataProvider.refresh();
           form1.discardSubmittedValues("save");
       } catch (Exception e) {
           error("Cannot switch to agente " + selectedAgenteId);
           log("Cannot switch to agente " + selectedAgenteId, e);
       }
   
Cannot find symbol????