Kamon and Akka 2.5.1

[Richard Rodseth]

Is there a release of Kamon that is compatible with Akka 2.5.1 ?

I'm trying out the CoordinatedShutdown feature as follows

      val system = ActorSystem("foo")

      Kamon.start()

      CoordinatedShutdown(system).addTask(CoordinatedShutdown.PhaseBeforeActorSystemTerminate, "shutdownKamon") { () =>

        println(s"Shutting down Kamon")

        Kamon.shutdown()

        Future.successful(Done)

      } 

And get the following error when terminating with cntrl-C:

Detected java.lang.NoSuchMethodError error, which MAY be caused by incompatible Akka versions on the classpath. Please note that a given Akka version MUST be the same across all modules of Akka that you are using, e.g. if you use akka-actor [2.5.1 (resolved from current classpath)] all other core Akka modules MUST be of the same version. External projects like Alpakka, Persistence plugins or Akka HTTP etc. have their own version numbers - please make sure you're using a compatible set of libraries.   

Uncaught error from thread [foo-akka.actor.default-dispatcher-3] shutting down JVM since 'akka.jvm-exit-on-fatal-error' is enabled for ActorSystem[foo]

java.lang.NoSuchMethodError: akka.actor.ActorSystem.shutdown()V

at kamon.Kamon$Instance.shutdown(Kamon.scala:79)

at kamon.Kamon$.shutdown(Kamon.scala:45)    

If I comment out the Kamon.start and Kamon.shutdown, I  see the println.        

[Richard Rodseth]

Following along here

https://github.com/kamon-io/Kamon/issues/459