object scala not found

[me]

When running "scripts/scald.rb --local tutorial/Tutorial1.scala"

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.

Any idea?

[Dean Wampler]

You built Scalding with sbt, following the instructions.

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Dean Wampler, Ph.D.
"Functional Programming for Java Developers",
"Programming Scala", and
"Programming Hive" - all from O'Reilly
twitter: @deanwampler, @chicagoscala
http://polyglotprogramming.com