java.lang.NoSuchMethodError: org.netbeans.modules.web.common.api.CssPreprocessors.createProjectProblemsProvider(Lorg/netbeans/api/project/Project;)Lorg/netbeans/spi/project/ui/ProjectProblemsProvider;
   at org.netbeans.modules.web.project.WebProject.createLookup(WebProject.java:599)
   at org.netbeans.modules.web.project.WebProject.<init>(WebProject.java:451)
   at org.netbeans.modules.web.project.WebProjectType.createProject(WebProjectType.java:86)
Caused: java.lang.reflect.InvocationTargetException
   at sun.reflect.GeneratedMethodAccessor58.invoke(GeneratedMethodAccessor58.java:0)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:497)
Caused: java.lang.IllegalArgumentException: java.lang.reflect.InvocationTargetException
   at org.netbeans.modules.project.ant.AntBasedGenericType.createProject(AntBasedGenericType.java:140)
   at org.netbeans.modules.project.ant.AntBasedProjectFactorySingleton.loadProject(AntBasedProjectFactorySingleton.java:264)
   at org.netbeans.modules.projectapi.nb.NbProjectManager.createProject(NbProjectManager.java:401)
   at org.netbeans.modules.projectapi.nb.NbProjectManager.access$300(NbProjectManager.java:94)
   at org.netbeans.modules.projectapi.nb.NbProjectManager$2.run(NbProjectManager.java:314)
   at org.netbeans.modules.projectapi.nb.NbProjectManager$2.run(NbProjectManager.java:243)
   at org.netbeans.modules.openide.util.DefaultMutexImplementation.readAccess(DefaultMutexImplementation.java:252)
   at org.openide.util.Mutex.readAccess(Mutex.java:250)
   at org.netbeans.modules.projectapi.nb.NbProjectManager.findProject(NbProjectManager.java:243)
   at org.netbeans.api.project.ProjectManager.findProject(ProjectManager.java:167)
   at org.netbeans.modules.projectapi.SimpleFileOwnerQueryImplementation.getOwner(SimpleFileOwnerQueryImplementation.java:161)
   at org.netbeans.api.project.FileOwnerQuery.getOwner(FileOwnerQuery.java:116)
   at org.netbeans.modules.projectapi.ProjectFileEncodingQueryImplementation.getEncoding(ProjectFileEncodingQueryImplementation.java:72)
   at org.netbeans.api.queries.FileEncodingQuery.getEncoding(FileEncodingQuery.java:96)
   at org.openide.text.DataEditorSupport.openDocument(DataEditorSupport.java:584)
   at org.openide.text.NbDocument.getDocument(NbDocument.java:616)
   at org.netbeans.modules.debugger.jpda.projectsui.LineTranslations$BreakpointLineUpdater.attach(LineTranslations.java:447)
   at org.netbeans.modules.debugger.jpda.projectsui.LineTranslations.registerForLineUpdates(LineTranslations.java:321)
   at org.netbeans.modules.debugger.jpda.projectsui.BreakpointAnnotationManager.breakpointAdded(BreakpointAnnotationManager.java:89)
   at org.netbeans.api.debugger.DebuggerManager.fireBreakpointCreated(DebuggerManager.java:889)
   at org.netbeans.api.debugger.DebuggerManager.initBreakpoints(DebuggerManager.java:1045)
   at org.netbeans.api.debugger.DebuggerManager.initBreakpoints(DebuggerManager.java:965)
   at org.netbeans.api.debugger.DebuggerManager.getBreakpoints(DebuggerManager.java:603)
   at org.netbeans.modules.debugger.jpda.projectsui.BreakpointAnnotationProvider.annotate(BreakpointAnnotationProvider.java:148)
   at org.netbeans.modules.debugger.jpda.projectsui.BreakpointAnnotationProvider.annotate(BreakpointAnnotationProvider.java:142)
   at org.openide.text.CloneableEditorSupport.ensureAnnotationsLoaded(CloneableEditorSupport.java:393)
   at org.openide.text.CloneableEditorInitializer.initAnnotations(CloneableEditorInitializer.java:643)
   at org.openide.text.CloneableEditorInitializer.run(CloneableEditorInitializer.java:351)
   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)