overloaded method value apply

[ArvinH]

Hi, I follow the PubSubServer.scala, I divide Subscriber and Publisher to two individual classes,
but in the Sub.scala (object Sub), like below:

...................

object Sub {
val actorSystem = ActorSystem("PubSubActorSystem")
println("starting subscription service...")
var r = new RedisClient("localhost",6379)
var s = actorSystem.actorOf(Props(new Subscriber(r)))
^
this line have strange error:
"overloaded method value apply with alternatives: (creator: () => akka.actor.Actor,dispatcher: String,routerConfig: akka.routing.RouterConfig,deploy: akka.actor.Deploy)akka.actor.Props (behavior: akka.actor.ActorContext => akka.actor.Actor.Receive)akka.actor.Props (creator: akka.japi.Creator[_ <: akka.actor.Actor])akka.actor.Props (creator: => akka.actor.Actor)akka.actor.Props (actorClass: Class[_ <: akka.actor.Actor])akka.actor.Props [T <: akka.actor.Actor](implicit evidence$1: ClassManifest[T])akka.actor.Props cannot be applied to (org.sample.pubsub.Subscriber) Sub.scala /pub_sub_scala/src/org/sample/pubsub line 12 Scala Problem"

.................

Anyone know what's happened?

sorry for the mess, hope someone can help me

Thank you for your time!