java.lang.ClassCastException: org.netbeans.modules.cnd.modelimpl.csm.core.ProjectImpl cannot be cast to org.netbeans.modules.cnd.modelimpl.csm.core.LibProjectImpl
   at org.netbeans.modules.cnd.modelimpl.csm.core.LibProjectImpl.createInstance(LibProjectImpl.java:100)
   at org.netbeans.modules.cnd.modelimpl.csm.core.LibraryManager$LibraryEntry.createUID(LibraryManager.java:623)
   at org.netbeans.modules.cnd.modelimpl.csm.core.LibraryManager$LibraryEntry.getLibrary(LibraryManager.java:613)
   at org.netbeans.modules.cnd.modelimpl.csm.core.LibraryManager$LibraryEntry.access$200(LibraryManager.java:588)
   at org.netbeans.modules.cnd.modelimpl.csm.core.LibraryManager.getLibraries(LibraryManager.java:135)
   at org.netbeans.modules.cnd.modelimpl.csm.core.ProjectBase.getLibraries(ProjectBase.java:2786)
   at org.netbeans.modules.cnd.modelimpl.csm.core.ProjectBase.getLibraries(ProjectBase.java:169)
   at org.netbeans.modules.cnd.modelimpl.csm.core.ProjectBase.getDependentProjects(ProjectBase.java:2799)
   at org.netbeans.modules.cnd.modelimpl.csm.core.ProjectBase.getPreprocHandlersForParse(ProjectBase.java:1519)
   at org.netbeans.modules.cnd.modelimpl.csm.core.FileImpl.getPreprocHandlersForParse(FileImpl.java:511)
   at org.netbeans.modules.cnd.modelimpl.impl.services.FileInfoQueryImpl.getMacroUsages(FileInfoQueryImpl.java:287)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferencesSupport.findDeclaration(ReferencesSupport.java:295)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferencesSupport.findReferencedObject(ReferencesSupport.java:248)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferenceImpl.getReferencedObject(ReferenceImpl.java:105)
   at org.netbeans.modules.cnd.highlight.semantic.MarkOccurrencesHighlighter.getOccurrences(MarkOccurrencesHighlighter.java:311)
   at org.netbeans.modules.cnd.highlight.semantic.MarkOccurrencesHighlighter.runImpl(MarkOccurrencesHighlighter.java:236)
   at org.netbeans.modules.cnd.highlight.semantic.MarkOccurrencesHighlighter.run(MarkOccurrencesHighlighter.java:159)
   at org.netbeans.modules.cnd.highlight.semantic.MarkOccurrencesHighlighter.run(MarkOccurrencesHighlighter.java:97)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:568)
   at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:744)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
   at java.util.concurrent.FutureTask.run(FutureTask.java:262)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)