java.lang.NullPointerException
   at org.netbeans.modules.cnd.refactoring.ui.WhereUsedPanel.getScopeProject(WhereUsedPanel.java:158)
   at org.netbeans.modules.cnd.refactoring.ui.WhereUsedQueryUI.setParameters(WhereUsedQueryUI.java:106)
   at org.netbeans.modules.refactoring.spi.impl.ParametersPanel$Prepare.run(ParametersPanel.java:991)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)