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$AppClassLoader.loadClass(Launcher.java:331)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
Caused: java.lang.ClassNotFoundException: org.clang.tools.services.support.ClangFileSystemProvider starting from ModuleCL@6c36597a[org.netbeans.modules.cnd.apt] with possible defining loaders [ModuleCL@5f63812[org.netbeans.libs.clank]] and declared parents [ModuleCL@1f5a4937[org.netbeans.api.annotations.common], org.netbeans.MainImpl$BootClassLoader@377dca04, ModuleCL@4c7ba689[org.openide.filesystems.nb], ModuleCL@6906aee7[org.netbeans.modules.cnd.utils], ModuleCL@5f63812[org.netbeans.libs.clank], ModuleCL@9ac547c[org.netbeans.modules.cnd.repository.api], ModuleCL@7a20850b[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.preprocess(ClankDriver.java:120)
   at org.netbeans.modules.cnd.modelimpl.parser.clank.ClankTokenStreamProducer.preprocessWithHandler(ClankTokenStreamProducer.java:297)
   at org.netbeans.modules.cnd.modelimpl.parser.clank.ClankTokenStreamProducer.getPreprocessorOutputForInterestedFile(ClankTokenStreamProducer.java:273)
   at org.netbeans.modules.cnd.modelimpl.parser.clank.ClankTokenStreamProducer.preprocessAndGetFileTokenStream(ClankTokenStreamProducer.java:231)
   at org.netbeans.modules.cnd.modelimpl.parser.clank.ClankTokenStreamProducer.getTokenStreamForCaching(ClankTokenStreamProducer.java:205)
   at org.netbeans.modules.cnd.modelimpl.csm.core.FileImpl.createAndCacheFullTokenStream(FileImpl.java:1226)
   at org.netbeans.modules.cnd.modelimpl.csm.core.FileImpl.getTokenStream(FileImpl.java:1294)
   at org.netbeans.modules.cnd.modelimpl.csm.deep.LazyStatementImpl.getStatementTokenStream(LazyStatementImpl.java:193)
   at org.netbeans.modules.cnd.modelimpl.csm.deep.LazyStatementImpl.renderStatements(LazyStatementImpl.java:162)
   at org.netbeans.modules.cnd.modelimpl.csm.deep.LazyStatementImpl.createStatements(LazyStatementImpl.java:143)
   at org.netbeans.modules.cnd.modelimpl.csm.deep.LazyStatementImpl.getStatements(LazyStatementImpl.java:106)
   at org.netbeans.modules.cnd.refactoring.hints.ExpressionFinder.findExpressionStatementInBody(ExpressionFinder.java:131)
   at org.netbeans.modules.cnd.refactoring.hints.ExpressionFinder.findExpressionStatement(ExpressionFinder.java:116)
   at org.netbeans.modules.cnd.refactoring.hints.ExpressionFinder.findExpressionStatement(ExpressionFinder.java:122)
   at org.netbeans.modules.cnd.refactoring.hints.ExpressionFinder.findExpressionStatement(ExpressionFinder.java:104)
   at org.netbeans.modules.cnd.refactoring.hints.SuggestionFactoryTask.detectIntroduceVariable(SuggestionFactoryTask.java:366)
   at org.netbeans.modules.cnd.refactoring.hints.SuggestionFactoryTask.process(SuggestionFactoryTask.java:191)
   at org.netbeans.modules.cnd.refactoring.hints.SuggestionFactoryTask.run(SuggestionFactoryTask.java:147)
   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)