java.lang.NullPointerException
        at org.netbeans.modules.cnd.refactoring.ui.WhereUsedPanel.getScopeProject(WhereUsedPanel.java:147)
        at org.netbeans.modules.cnd.refactoring.ui.WhereUsedQueryUI.setParameters(WhereUsedQueryUI.java:99)
        at org.netbeans.modules.refactoring.spi.impl.ParametersPanel$Prepare.run(ParametersPanel.java:777)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:573)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1005)