Build.scala

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

object ApplicationBuild extends Build {

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

  val core = Project("core", file("core"))

  val appDependencies = Seq(
    // Add your project dependencies here,
    jdbc,
    anorm
  )

  val main = play.Project(appName, appVersion, appDependencies, path = file("web")) dependsOn core
}