Adding Play JSON Library to sbt

How can I add the Play JSON library (play.api.libs.json) to my sbt project?

When I added the following to my plugins.sbt file:

addSbtPlugin("play" % "sbt-plugin" % "2.1.0")

I faced this error:

[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  ::          UNRESOLVED DEPENDENCIES         ::
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  :: play#sbt-plugin;2.1.0: not found
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::

I did not find a resolver for this library, otherwise I would've added it and ran sbt update. Note that my resolvers includes http://repo.typesafe.com/typesafe/releases/.

Play 2.2 is out and can be added separately from rest of Play Framework. in build.sbt:

resolvers += "Typesafe Repo" at "http://repo.typesafe.com/typesafe/releases/"

libraryDependencies += "com.typesafe.play" %% "play-json" % "2.2.1"

Play 2.3 JSON with SBT >= 0.13.5

put into build.sbt:

libraryDependencies += "com.typesafe.play" %% "play-json" % "2.3.4"

Play 2.1

build.sbt:

resolvers += "Typesafe Repo" at "http://repo.typesafe.com/typesafe/releases/"

scalaVersion := "2.10.2"

libraryDependencies += "play" % "play_2.10" % "2.1.0"

Play JSON is in Play 2.1 not an independent artifact.

This worked for me (scala 2.11)

resolvers += "Typesafe Repo" at "http://repo.typesafe.com/typesafe/releases/"

libraryDependencies += "com.typesafe.play" %% "play-json" % "2.3.0"

You can use the following to get the Play JSON library:

addSbtPlugin("play" % "play-json" % "2.2-SNAPSHOT")

You may also have to include the following resolver:

"Mandubian repository snapshots" at "https://github.com/mandubian/mandubian-mvn/raw/master/snapshots/"

Here's where I originally got the info: http://mandubian.com/2013/02/21/play-json-stand-alone/