import sbt._
import Keys._

object ApplicationBuild extends Build {

  val appName         = "play-scala-mongodb"
  val appVersion      = "1.0-SNAPSHOT"

  val appDependencies = Seq(
    "org.reactivemongo" %% "play2-reactivemongo" % "0.10.5.0.akka22" exclude("org.scala-stm", "scala-stm_2.10.0")
  )

  val main = play.Project(appName, appVersion, appDependencies).settings(
  )

}

import sbt._
import Keys._

object ApplicationBuild extends Build {

  val appName         = "play-scala-mongodb"
  val appVersion      = "1.0-SNAPSHOT"

  val appDependencies = Seq(
    "org.reactivemongo" %% "play2-reactivemongo" % "0.9" exclude("org.scala-stm", "scala-stm_2.10.0")
  )

  val main = play.Project(appName, appVersion, appDependencies).settings(
  )

}

--- 
+++ 
@@ -7,7 +7,7 @@
   val appVersion      = "1.0-SNAPSHOT"
 
   val appDependencies = Seq(
-    "org.reactivemongo" %% "play2-reactivemongo" % "0.9" exclude("org.scala-stm", "scala-stm_2.10.0")
+    "org.reactivemongo" %% "play2-reactivemongo" % "0.10.5.0.akka22" exclude("org.scala-stm", "scala-stm_2.10.0")
   )
 
   val main = play.Project(appName, appVersion, appDependencies).settings(
Update reactivemongo version to one that supports play 2.2.
