Json macros breakage, cant find matching apply/unapply

Im getting some macro breakage in what looks like a situation that should work.

This is with 2.2.0_M2 of play-json.

PlayJsonBoilerplate.scala:39: No apply function found matching unapply return types
[error]     Json.reads[Collaborator]
[error]               ^

But, this code works fine, and is in scope for the above ^

implicit lazy val ReadsCollaboratorCollaboratedUser: Reads[Collaborator.CollaboratedUser] = {
    import com.heroku.platform.api.Collaborator.CollaboratedUser
    Json.reads[Collaborator.CollaboratedUser]
  }

Apply and Unapply line up afaik?

scala> import com.heroku.platform.api._
import com.heroku.platform.api._

scala> Collaborator.apply _
res0: (String, String, com.heroku.platform.api.Collaborator.CollaboratedUser) => com.heroku.platform.api.Collaborator = <function3>

scala> Collaborator.unapply _
res1: com.heroku.platform.api.Collaborator => Option[(String, String, com.heroku.platform.api.Collaborator.CollaboratedUser)] = <function1>

Must be to do with the nested case class in the companion?

object Collaborator {
  case class CollaboratedUser(email: String, id: String)
}

case class Collaborator(created_at: String, id: String, user: CollaboratedUser)

[cridmann]

I ran into a similar issue when having an enumeration defined in its companion class. I fixed this by being very explicit about the type within the case class definition.

Try seeing if this works:

case class Parent( id: String, child: Parent.Related.Child) { }

[cchantep]

More recent duplicate #3244