error: scala.tools.nsc.MissingRequirementError: object scala not found.
at scala.tools.nsc.symtab.Definitions$definitions$.getModuleOrClass(Definitions.scala:655)
at scala.tools.nsc.symtab.Definitions$definitions$.getModule(Definitions.scala:605)
at scala.tools.nsc.symtab.Definitions$definitions$.ScalaPackage(Definitions.scala:145)
at scala.tools.nsc.symtab.Definitions$definitions$.ScalaPackageClass(Definitions.scala:146)
at scala.tools.nsc.symtab.Definitions$definitions$.AnyClass(Definitions.scala:176)
at scala.tools.nsc.symtab.Definitions$definitions$.init(Definitions.scala:814)
at scala.tools.nsc.Global$Run.<init>(Global.scala:697)
at scala.tools.nsc.Main$.process(Main.scala:105)
at scala.tools.nsc.Main$.main(Main.scala:123)
at scala.tools.nsc.Main.main(Main.scala)
error: fatal error: object scala not found.