The Actor DSL example from Akka doc

Question

I try to implement Actor DSL example from akk doc, but found error,

ambiguous implicit values: both method senderFromInbox in trait Inbox of type (implicit inbox

Answer 1

Short answer (only for REPL without :paste mode):

val a = ...
implicit val i = inbox()

You should pass self, not null as second parameter (sender) of tell method. Method ! takes this parameter implicitly and invokes tell. There are 2 implicit ActorRef in scope of sender ! "hi": i and self (field of Act) - compiler can't figure out which one you need.

You should remove implicit val i from scope of sender ! "hi".

Correct solution - move actor creation to method and all other code - to other method. In REPL you could create a before i.

Quick dirty solution - hide i like this:

val a = {
  val i = 0
  actor(new Act {
  ...
}