Error Scala object specs2 is not a member of package org

Error en compilar Scala project :

/home/luxo/coresaldos/app/Global.scala:2: error: object springframework is not a member of package org
import org.springframework.context.support.ClassPathXmlApplicationContext
           ^
/home/luxo/coresaldos/app/Global.scala:3: error: not found: object tasks
import tasks.GlobalJava
       ^
/home/luxo/coresaldos/app/Global.scala:4: error: not found: object play
import play.api.{Application, GlobalSettings}
       ^
/home/luxo/coresaldos/app/Global.scala:6: error: not found: type GlobalSettings
object Global extends GlobalSettings {
                      ^
/home/luxo/coresaldos/app/Global.scala:8: error: not found: type ClassPathXmlApplicationContext
  val ctx = new ClassPathXmlApplicationContext("applicationContext.xml")
                ^
/home/luxo/coresaldos/app/Global.scala:9: error: not found: type GlobalJava
  var glJ = new GlobalJava()
                ^
/home/luxo/coresaldos/app/Global.scala:12: error: value onStart is not a member of AnyRef
    super.onStart(app)
          ^
/home/luxo/coresaldos/app/Global.scala:20: error: value onStop is not a member of AnyRef
    super.onStop(app)
          ^
8 errors found


http://stackoverflow.com/questions/9985483/specs2-on-osx-error-object-specs2-is-not-a-member-of-package-org

Install lastest SBT:
Please use the latest release of sbt, currently 0.13.8.