java.lang.NullPointerException
        at org.netbeans.modules.cnd.modelimpl.csm.NamespaceImpl.findUidsByPrefix(NamespaceImpl.java:250)
        at org.netbeans.modules.cnd.modelimpl.impl.services.SelectImpl.analyzeFilter(SelectImpl.java:175)
        at org.netbeans.modules.cnd.modelimpl.impl.services.SelectImpl.getDeclarations(SelectImpl.java:119)
        at org.netbeans.modules.cnd.api.model.services.CsmSelect$Default.getDeclarations(CsmSelect.java:157)
        at org.netbeans.modules.cnd.completion.csm.CsmProjectContentResolver.filterDeclarations(CsmProjectContentResolver.java:1224)
        at org.netbeans.modules.cnd.completion.csm.CsmProjectContentResolver.getNamespaceMembers(CsmProjectContentResolver.java:1194)
        at org.netbeans.modules.cnd.completion.csm.CsmProjectContentResolver.getNamespaceMembers(CsmProjectContentResolver.java:1179)
        at org.netbeans.modules.cnd.completion.csm.CsmProjectContentResolver.getNamespaceClassesEnums(CsmProjectContentResolver.java:867)
        at org.netbeans.modules.cnd.completion.csm.CompletionResolverImpl.getClassesEnums(CompletionResolverImpl.java:732)
        at org.netbeans.modules.cnd.completion.csm.CompletionResolverImpl.resolveContext(CompletionResolverImpl.java:413)
        at org.netbeans.modules.cnd.completion.csm.CompletionResolverImpl.resolveContext(CompletionResolverImpl.java:250)
        at org.netbeans.modules.cnd.completion.csm.CompletionResolverImpl.resolve(CompletionResolverImpl.java:185)
        at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery$Context.resolveItem(CsmCompletionQuery.java:1123)
        at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery$Context.resolveExp(CsmCompletionQuery.java:1040)
        at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery.getResult(CsmCompletionQuery.java:297)
        at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery.query(CsmCompletionQuery.java:279)
        at org.netbeans.modules.cnd.completion.csm.CompletionUtilities.findItemAtCaretPos(CompletionUtilities.java:156)
        at org.netbeans.modules.cnd.completion.impl.xref.ReferencesSupport.findDeclaration(ReferencesSupport.java:358)
        at org.netbeans.modules.cnd.completion.impl.xref.ReferencesSupport.findDeclaration(ReferencesSupport.java:304)
        at org.netbeans.modules.cnd.completion.impl.xref.ReferencesSupport.findReferencedObject(ReferencesSupport.java:201)
        at org.netbeans.modules.cnd.completion.impl.xref.ReferenceImpl.getReferencedObject(ReferenceImpl.java:75)
        at org.netbeans.modules.cnd.highlight.semantic.MarkOccurrencesHighlighter.getOccurrences(MarkOccurrencesHighlighter.java:216)
        at org.netbeans.modules.cnd.highlight.semantic.MarkOccurrencesHighlighter.runImpl(MarkOccurrencesHighlighter.java:172)
        at org.netbeans.modules.cnd.highlight.semantic.MarkOccurrencesHighlighter.run(MarkOccurrencesHighlighter.java:132)
        at org.netbeans.modules.cnd.model.tasks.CsmFileTaskFactory$.run(CsmFileTaskFactory.java:341)
        at org.netbeans.modules.cnd.model.tasks.CsmFileTaskFactory$CsmSafeRunnable.run(CsmFileTaskFactory.java:375)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997)