java.lang.IllegalArgumentException: The designated path Projects/org-netbeans-modules-scala-project/Customizer doesn't exist. Cannot create customizer.
   at org.netbeans.spi.project.ui.support.ProjectCustomizer.createCustomizerDialog(ProjectCustomizer.java:255)
   at org.netbeans.spi.project.ui.support.ProjectCustomizer.createCustomizerDialog(ProjectCustomizer.java:213)
   at org.netbeans.modules.scala.project.ui.customizer.CustomizerProviderImpl.showCustomizer(CustomizerProviderImpl.java:126)
   at org.netbeans.modules.scala.project.ui.customizer.CustomizerProviderImpl.showCustomizer(CustomizerProviderImpl.java:107)
   at org.netbeans.modules.scala.project.ui.customizer.CustomizerProviderImpl.showCustomizer(CustomizerProviderImpl.java:102)
   at org.netbeans.modules.project.ui.actions.CustomizeProject$1$1.run(CustomizeProject.java:160)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:749)
   at java.awt.EventQueue.access$500(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:702)
   at java.awt.EventQueue$3.run(EventQueue.java:696)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:719)
   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)