spray json - akka-http error: could not find implicit value for parameter um: akka.http.scaladsl.unmarshalling.FromRequestUnmarshaller

I know that has been asked already, but I can't seem to find an answer.Here is my code :import akka.http.scaladsl.marshallers.sprayjson.SprayJsonSupportimport spray.json.DefaultJsonProtocolfinal case class Client(clientId:Int, clientName:String, platformIds:Int, host:String, password:String)object ClientJson extends DefaultJsonProtocol with SprayJsonSupport { implicit val clientFormat = jsonFormat5(Client)}class HTTPListenerActor extends Actor with ImplicitMaterializer with RoadMap {implicit val conf = context.system.settings.configimplicit ...Read more