IntelliJ Idea 14: cannot resolve symbol spark

Question

I made a dependency of Spark which worked in my first project. But when I try to make a new project with Spark, my SBT does not import the external jars of org.apache.spark. The

Answer 1

I use

scalaVersion := "2.11.7"

libraryDependencies += "org.apache.spark" %% "spark-core" % "1.4.1"

in my build.sbt and it works for me.