lazy valを使わないとヌルポ (Play 2.1.1)

Build.scala

import sbt._
import Keys._
import play.Project._

object ApplicationBuild extends Build {

  val appName         = "test"
  val appVersion      = "1.0-SNAPSHOT"

  /*lazy*/val main = play.Project(appName, appVersion, appDependencies).settings() // cause NullPointerException!

  val appDependencies = Seq()
}