Readme example not working

[ankusharya]

I am facing issue in making first example of Readme.md work.

import akka.ui._
import akka.NotUsed
import akka.actor.ActorSystem
import akka.stream.ActorMaterializer
import akka.stream.scaladsl.{Sink, Source}
import org.scalajs.dom.raw.Event
import scalatags.JsDom.all._
import org.scalajs.dom.document

object Ankush {

def main(args: Array[String]): Unit = {
implicit val system = ActorSystem("AkkaUI")
implicit val materializer = ActorMaterializer()

val textBox =  input(placeholder := "Name").render
val name = span().render

val source: Source[Event, NotUsed] = textBox.source("input") // <---- Type Error Any does not confirm to type of Source
val sink: Sink[String, NotUsed] = name.sink("textContent") // <---- Type Error Any does not confirm to type of Sink


source.map(_ => textBox.value).runWith(sink)

val root = div(
  textBox,
  h2("Hello ", name)
)

document.querySelector("#root").appendChild(root.render)

}
}