java.lang.Exception: DESERIALIZED for C:/Programming/Basic/N/ Thread=Initializing Code Assistance for Basic.
   at org.netbeans.modules.cnd.repository.util.IntToStringCache.<init>(IntToStringCache.java:103)
   at org.netbeans.modules.cnd.repository.util.IntToStringCache.createFromStream(IntToStringCache.java:79)
   at org.netbeans.modules.cnd.repository.translator.UnitsCache.readUnitFilesCache(UnitsCache.java:453)
   at org.netbeans.modules.cnd.repository.translator.UnitsCache.loadUnitIndex(UnitsCache.java:375)
   at org.netbeans.modules.cnd.repository.translator.UnitsCache.loadUnitIndex(UnitsCache.java:549)
   at org.netbeans.modules.cnd.repository.translator.RepositoryTranslatorImpl.loadUnitIndex(RepositoryTranslatorImpl.java:186)
   at org.netbeans.modules.cnd.repository.disk.DiskRepositoryManager.getCreateUnit(DiskRepositoryManager.java:135)
   at org.netbeans.modules.cnd.repository.disk.DiskRepositoryManager.openUnit(DiskRepositoryManager.java:284)
   at org.netbeans.modules.cnd.repository.impl.DelegateRepository.openUnit(DelegateRepository.java:149)
   at org.netbeans.modules.cnd.modelimpl.repository.RepositoryUtils.openUnit(RepositoryUtils.java:354)
   at org.netbeans.modules.cnd.modelimpl.repository.RepositoryUtils.openUnit(RepositoryUtils.java:348)
   at org.netbeans.modules.cnd.modelimpl.csm.core.ProjectBase.readInstance(ProjectBase.java:404)
   at org.netbeans.modules.cnd.modelimpl.csm.core.ProjectBase.readInstance(ProjectBase.java:387)
   at org.netbeans.modules.cnd.modelimpl.csm.core.ProjectImpl.createInstance(ProjectImpl.java:95)
   at org.netbeans.modules.cnd.modelimpl.csm.core.ProjectImpl.createInstance(ProjectImpl.java:88)
   at org.netbeans.modules.cnd.modelimpl.csm.core.ModelImpl.addProject(ModelImpl.java:227)
   at org.netbeans.modules.cnd.modelimpl.platform.ModelSupport$3.runImpl(ModelSupport.java:375)
   at org.netbeans.modules.cnd.utils.NamedRunnable.run(NamedRunnable.java:62)
   at org.netbeans.modules.cnd.spi.toolchain.CompilerSetManagerEvents.runProjectReadiness(CompilerSetManagerEvents.java:91)
   at org.netbeans.modules.cnd.makeproject.api.configurations.Configurations.runOnProjectReadiness(Configurations.java:136)
   at org.netbeans.modules.cnd.makeproject.api.configurations.Configurations.runOnProjectReadiness(Configurations.java:118)
   at org.netbeans.modules.cnd.makeproject.NativeProjectProvider.runOnProjectReadiness(NativeProjectProvider.java:126)
   at org.netbeans.modules.cnd.modelimpl.platform.ModelSupport.addProject(ModelSupport.java:381)
   at org.netbeans.modules.cnd.modelimpl.platform.ModelSupport.openProjects(ModelSupport.java:245)
   at org.netbeans.modules.cnd.modelimpl.platform.ModelSupport.access$100(ModelSupport.java:101)
   at org.netbeans.modules.cnd.modelimpl.platform.ModelSupport$1.run(ModelSupport.java:115)
Caused: java.lang.IllegalArgumentException: Unit: C:/Programming/Basic/N/ FileIndex: 281 CacheSize: 159 Thread=org.netbeans.modules.refactoring.spi.impl.ParametersPanel
   at org.netbeans.modules.cnd.repository.translator.RepositoryTranslatorImpl.getFileNameById(RepositoryTranslatorImpl.java:130)
   at org.netbeans.modules.cnd.repository.translator.DelegateRepositoryTranslator.getFileNameById(DelegateRepositoryTranslator.java:72)
   at org.netbeans.modules.cnd.apt.utils.APTSerializeUtils.getFileNameById(APTSerializeUtils.java:115)
   at org.netbeans.modules.cnd.modelimpl.repository.KeyUtilities.getFileNameById(KeyUtilities.java:170)
   at org.netbeans.modules.cnd.modelimpl.impl.services.ReferenceRepositoryImpl.findRelevantFiles(ReferenceRepositoryImpl.java:473)
   at org.netbeans.modules.cnd.refactoring.plugins.CsmRefactoringPlugin.getRelevantFiles(CsmRefactoringPlugin.java:252)
   at org.netbeans.modules.cnd.refactoring.plugins.CsmWhereUsedQueryPlugin.doPrepareElements(CsmWhereUsedQueryPlugin.java:147)
   at org.netbeans.modules.cnd.refactoring.plugins.CsmWhereUsedQueryPlugin.prepare(CsmWhereUsedQueryPlugin.java:121)
   at org.netbeans.modules.refactoring.api.AbstractRefactoring.pluginsPrepare2(AbstractRefactoring.java:437)
   at org.netbeans.modules.refactoring.api.AbstractRefactoring.pluginsPrepare(AbstractRefactoring.java:421)
   at org.netbeans.modules.refactoring.api.AbstractRefactoring.prepare(AbstractRefactoring.java:232)
   at org.netbeans.modules.refactoring.spi.impl.ParametersPanel$Prepare$2.run(ParametersPanel.java:1016)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2044)