java.lang.Exception: got no controller from CSS Preprocessors: null
   at org.netbeans.spi.options.AdvancedOption$1.call(AdvancedOption.java:151)
   at org.netbeans.spi.options.AdvancedOption$1.call(AdvancedOption.java:144)
   at org.netbeans.modules.options.AdvancedOptionImpl.create(AdvancedOptionImpl.java:102)
   at org.netbeans.modules.options.advanced.Model.getPanel(Model.java:171)
   at org.netbeans.modules.options.advanced.AdvancedPanel.handleTabSwitched(AdvancedPanel.java:200)
   at org.netbeans.modules.options.advanced.AdvancedPanel.initTabbedPane(AdvancedPanel.java:160)
   at org.netbeans.modules.options.advanced.AdvancedPanel.init(AdvancedPanel.java:148)
   at org.netbeans.modules.options.advanced.AdvancedPanelController.getComponent(AdvancedPanelController.java:100)
   at org.netbeans.modules.options.CategoryModel$Category.getComponent(CategoryModel.java:434)
   at org.netbeans.modules.options.CategoryModel$Category.update(CategoryModel.java:393)
   at org.netbeans.modules.options.CategoryModel.update(CategoryModel.java:215)
   at org.netbeans.modules.options.OptionsPanel$2.run(OptionsPanel.java:307)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
   at java.awt.EventQueue.access$500(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:709)
   at java.awt.EventQueue$3.run(EventQueue.java:703)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)