Oh... I fixed the error myself by adding the following line in my sbt file :
libraryDependencies += "org.apache.spark" %% "spark-core" % "0.9.0-incubating" -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Building-a-Standalone-App-in-Scala-and-graphX-tp1622p1626.html Sent from the Apache Spark User List mailing list archive at Nabble.com.
