java.lang.NoClassDefFoundError: org/netbeans/modules/scala/sbt/project/SBTProjectOpenedHook
   at org.netbeans.modules.scala.sbt.project.SBTProject.lookup$lzycompute(SBTProject.java:32)
   at org.netbeans.modules.scala.sbt.project.SBTProject.lookup(SBTProject.java:25)
   at org.netbeans.modules.scala.sbt.project.SBTProject.getLookup(SBTProject.java:40)
   at org.netbeans.modules.projectapi.nb.NbProjectInformationProvider.getProjectInformation(NbProjectInformationProvider.java:75)
   at org.netbeans.api.project.ProjectUtils.getInformation(ProjectUtils.java:96)
   at org.netbeans.modules.project.ui.OpenProjectList.open(OpenProjectList.java:820)
   at org.netbeans.modules.project.ui.OpenProjectList$6.run(OpenProjectList.java:675)
   at org.openide.util.RequestProcessor$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)