akka-http.scala

Error:(117, 26) type mismatch;
 found   : akka.http.scaladsl.server.Route
    (which expands to)  akka.http.scaladsl.server.RequestContext => scala.concurrent.Future[akka.http.scaladsl.server.RouteResult]
 required: akka.stream.scaladsl.Flow[akka.http.scaladsl.model.HttpRequest,akka.http.scaladsl.model.HttpResponse,Any]
    Http().bindAndHandle(route, thisHost, port) onComplete {

//where:

val route: Route = ???

//and yet the documentation: http://doc.akka.io/docs/akka-http/current/scala/http/routing-dsl/index.html

val bindingFuture = Http().bindAndHandle(route, "localhost", 8080)

//So - does bindAndHandle accept a Route, a Flow, or what? How do I turn a Route into a Flow?

If anybody else has this problem, the solution to this is simple (even not explicitly explained):

Add an implicit val like

implicit val materializer = ActorMaterializer()

which is in the dependency

"com.typesafe.akka" %% "akka-stream" % "2.5.11" // or any current version

After including the implicit val the system compiles for me.