java.lang.AssertionError: no object for UID KeyBasedUID on FileKey (/usr/includeL, /usr/include/bits/mathdef.h)
   at org.netbeans.modules.cnd.modelimpl.csm.core.OffsetableBase._getFile(OffsetableBase.java:157)
   at org.netbeans.modules.cnd.modelimpl.csm.core.OffsetableBase.getContainingFile(OffsetableBase.java:132)
   at org.netbeans.modules.cnd.modelimpl.impl.services.IncludeResolverImpl.isObjectVisible(IncludeResolverImpl.java:333)
   at org.netbeans.modules.cnd.completion.csm.CompletionResolverImpl.isEnoughAfterFilterVisibileObjects(CompletionResolverImpl.java:302)
   at org.netbeans.modules.cnd.completion.csm.CompletionResolverImpl.resolveContext(CompletionResolverImpl.java:611)
   at org.netbeans.modules.cnd.completion.csm.CompletionResolverImpl.resolveContext(CompletionResolverImpl.java:254)
   at org.netbeans.modules.cnd.completion.csm.CompletionResolverImpl.resolve(CompletionResolverImpl.java:204)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery$Context.resolve(CsmCompletionQuery.java:898)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery$Context.resolveItem(CsmCompletionQuery.java:1339)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery$Context.resolveExp(CsmCompletionQuery.java:1264)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery.getResult(CsmCompletionQuery.java:349)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery.query(CsmCompletionQuery.java:330)
   at org.netbeans.modules.cnd.completion.csm.CompletionUtilities.findItemsReferencedAtCaretPos(CompletionUtilities.java:154)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferencesSupport.findDeclaration(ReferencesSupport.java:395)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferencesSupport.findDeclaration(ReferencesSupport.java:346)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferencesSupport.findReferencedObject(ReferencesSupport.java:239)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferenceImpl.getReferencedObject(ReferenceImpl.java:103)
   at org.netbeans.modules.cnd.modelimpl.trace.TraceXRef.createLightWeightEntry(TraceXRef.java:490)
   at org.netbeans.modules.cnd.modelimpl.trace.TraceXRef.access$100(TraceXRef.java:114)
   at org.netbeans.modules.cnd.modelimpl.trace.TraceXRef$LWVisitor.visit(TraceXRef.java:430)
   at org.netbeans.modules.cnd.completion.impl.xref.FileReferencesImpl._accept(FileReferencesImpl.java:147)
   at org.netbeans.modules.cnd.completion.impl.xref.FileReferencesImpl.accept(FileReferencesImpl.java:104)
   at org.netbeans.modules.cnd.modelimpl.trace.TraceXRef.analyzeFile(TraceXRef.java:379)
   at org.netbeans.modules.cnd.modelimpl.trace.TraceXRef.access$000(TraceXRef.java:114)
   at org.netbeans.modules.cnd.modelimpl.trace.TraceXRef$1.run(TraceXRef.java:287)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.AssertionError: no object for UID KeyBasedUID on FileKey (/usr/includeL, /usr/include/bits/mathdef.h)
   at org.openide.util.RequestProcessor.post(RequestProcessor.java:425)
   at org.netbeans.modules.cnd.modelimpl.trace.TraceXRef.traceProjectRefsStatistics(TraceXRef.java:299)
   at org.netbeans.modules.cnd.modelui.trace.TestProjectReferencesAction.testProject(TestProjectReferencesAction.java:270)
   at org.netbeans.modules.cnd.modelui.trace.TestProjectReferencesAction.performAction(TestProjectReferencesAction.java:223)
   at org.netbeans.modules.cnd.modelui.actions.ProjectActionBase$1.run(ProjectActionBase.java:150)
   at org.netbeans.modules.cnd.modelimpl.csm.core.ModelImpl$2.run(ModelImpl.java:362)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1424)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1968)