java.lang.Error: typeConstructor inapplicable for <none>
   at scala.tools.nsc.symtab.SymbolTable.abort(SymbolTable.java:35)
   at scala.tools.nsc.symtab.Symbols$Symbol.typeConstructor(Symbols.java:882)
   at scala.tools.nsc.symtab.Definitions$definitions$.scala$tools$nsc$symtab$Definitions$definitions$$booltype(Definitions.java:157)
   at scala.tools.nsc.symtab.Definitions$definitions$.init(Definitions.java:811)
   at scala.tools.nsc.Global$Run.<init>(Global.java:694)
   at scala.tools.nsc.interactive.Global$TyperRun.<init>(Global.java:925)
   at scala.tools.nsc.interactive.Global.newTyperRun(Global.java:951)
   at scala.tools.nsc.interactive.Global.<init>(Global.java:166)
   at org.netbeans.modules.scala.core.interactive.Global.<init>(Global.java:13)
   at org.netbeans.modules.scala.core.ScalaGlobal.<init>(ScalaGlobal.java:88)
   at org.netbeans.modules.scala.core.ScalaGlobal$.getGlobal(ScalaGlobal.java:628)
   at org.netbeans.modules.scala.core.ScalaParserResult.<init>(ScalaParserResult.java:61)
   at org.netbeans.modules.scala.core.ScalaParserResult$.apply(ScalaParserResult.java:186)
   at org.netbeans.modules.scala.core.ScalaParser.parse(ScalaParser.java:99)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callParse(TaskProcessor.java:595)
   at org.netbeans.modules.parsing.impl.SourceCache.getResult(SourceCache.java:213)
   at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:717)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
   at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
   at java.util.concurrent.FutureTask.run(FutureTask.java:138)
   at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
   at java.lang.Thread.run(Thread.java:680)