Play Framework 2.1: Use play.api.Configuration in Build.scala
java, playframework, playframework-2.1, version
Solution
I works in `2.1-RC2` if you use typesafe's config library directly, without Play's `Configuration` wrapper. It's a Java API, so it is used slightly different than described in this answer.
In `project/Build.scala` import the library:
import com.typesafe.config._
and load the configuration from the file manually. Calling `resolve()` is needed to resolve substitutions.
val conf = ConfigFactory.parseFile(new File("conf/application.conf")).resolve()
val appName = conf.getString("app.name")
val appVersion = conf.getString("app.version")
Problem
In the top answer to Play Framework 2: Read the application version defined in Build.scala it's suggested that the application version number be specified in `conf/application.conf` and loaded in `Build.scala` through `play.api.Configuration`. I'm using `Play 2.1-RC2` and getting the following error message when building: ``` [error] [...]/project/Build.scala:7: object Configuration is not a member of package play.api [error] val conf = play.api.Configuration.load(new File(".")) ``` I think this might be caused by the fact that with Play 2.1 build dependencies have to be specified as plugins to SBT, and `play.api.Configuration` is not part of Play's SBT plugin. I'm guessing I have to include Play's core libraries in `project/plugins.sbt`, but I haven't been able to figure out how. Any ideas? (note: Would have made this a comment in the original question if I had enough rep points)