This plugin is not longer being maintained.
Play-TypeScript plugin only supports a native compiler. The TypeScript compiler needs to be installed for this plugin to work. Refer to the site of TypeScript for more information.
Add following to your projects project/plugins.sbt
addSbtPlugin("com.github.hexx" % "play-typescript" % "0.0.1")
After Installation, this plugin works like the built-in CoffeeScript compiler.