java.lang.ClassNotFoundException: org.clang.tools.services.support.ClangFileSystemProvider
   at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
   at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
Caused: java.lang.ClassNotFoundException: org.clang.tools.services.support.ClangFileSystemProvider starting from ModuleCL@5c2b9db7[org.netbeans.modules.cnd.apt] with possible defining loaders null and declared parents [ModuleCL@6a339ba8[org.openide.filesystems.nb], org.netbeans.MainImpl$BootClassLoader@4769b07b, ModuleCL@608a0bb[org.netbeans.modules.cnd.utils], ModuleCL@28aeda06[org.netbeans.modules.cnd.repository.api], ModuleCL@23e8a3f2[org.netbeans.api.annotations.common], ModuleCL@11069afb[org.netbeans.libs.clank], ModuleCL@752a8352[org.netbeans.modules.cnd.antlr]]
   at org.netbeans.ProxyClassLoader.loadClass(ProxyClassLoader.java:224)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
Caused: java.lang.NoClassDefFoundError: org/clang/tools/services/support/ClangFileSystemProvider
   at org.netbeans.modules.cnd.apt.support.ClankDriver.extractTokenStream(ClankDriver.java:90)
   at org.netbeans.modules.cnd.modelimpl.parser.clank.ClankTokenStreamProducer.getTokenStream(ClankTokenStreamProducer.java:143)
   at org.netbeans.modules.cnd.modelimpl.csm.core.FileImpl.createAndCacheFullTokenStream(FileImpl.java:1185)
   at org.netbeans.modules.cnd.modelimpl.csm.core.FileImpl.getTokenStream(FileImpl.java:1238)
   at org.netbeans.modules.cnd.modelimpl.impl.services.MacroExpansionDocProviderImpl.getFileTokenSequence(MacroExpansionDocProviderImpl.java:833)
   at org.netbeans.modules.cnd.modelimpl.impl.services.MacroExpansionDocProviderImpl.expand(MacroExpansionDocProviderImpl.java:509)
   at org.netbeans.modules.cnd.modelimpl.impl.services.MacroExpansionDocProviderImpl.getMacroTable(MacroExpansionDocProviderImpl.java:1517)
   at org.netbeans.modules.cnd.modelimpl.impl.services.MacroExpansionDocProviderImpl.expand(MacroExpansionDocProviderImpl.java:331)
   at org.netbeans.modules.cnd.api.model.services.CsmMacroExpansion.expand(CsmMacroExpansion.java:161)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmExpandedTokenProcessor.create(CsmExpandedTokenProcessor.java:101)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmExpandedTokenProcessor.create(CsmExpandedTokenProcessor.java:93)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery.processTokensInFile(CsmCompletionQuery.java:723)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery.queryImpl(CsmCompletionQuery.java:563)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery.query(CsmCompletionQuery.java:527)
   at org.netbeans.modules.cnd.completion.cplusplus.ext.CsmCompletionQuery.query(CsmCompletionQuery.java:520)
   at org.netbeans.modules.cnd.completion.csm.CompletionUtilities.findItemsReferencedAtCaretPos(CompletionUtilities.java:163)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferencesSupport.findDeclaration(ReferencesSupport.java:491)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferencesSupport.findDeclaration(ReferencesSupport.java:428)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferencesSupport.findReferencedObject(ReferencesSupport.java:227)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferenceImpl.getReferencedObjectImpl(ReferenceImpl.java:134)
   at org.netbeans.modules.cnd.completion.impl.xref.ReferenceImpl.getReferencedObject(ReferenceImpl.java:96)
   at org.netbeans.modules.cnd.refactoring.hints.SuggestionFactoryTask.process(SuggestionFactoryTask.java:208)
   at org.netbeans.modules.cnd.refactoring.hints.SuggestionFactoryTask.run(SuggestionFactoryTask.java:144)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:584)
   at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:809)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:304)
   at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:725)
   at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:686)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   at java.util.concurrent.FutureTask.run(FutureTask.java:266)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1443)
   at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2058)