Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Samebug tips

  1. ,

    You are probably trying to create an actor using actorSystem.actorOf(Props(classOf[AnyActor], args...)) where args does not match AnyActor constructor parameters.

Solutions on the web

via GitHub by nvijayap
, 1 year ago
This exception has no message.
via GitHub by move-tool
, 1 year ago
This exception has no message.
via GitHub by seanbright
, 2 years ago
This exception has no message.
java.lang.IllegalArgumentException: unknown actor creator [class spark.jobserver.WebApi]	at akka.actor.IndirectActorProducer$.apply(Props.scala:313)	at akka.actor.Props.producer(Props.scala:179)	at akka.actor.Props.(Props.scala:192)	at akka.actor.Props$.apply(Props.scala:93)	at spark.jobserver.Boot.(Boot.scala:34)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:422)	at spray.servlet.Initializer$$anonfun$contextInitialized$1.apply$mcV$sp(Initializer.scala:58)	at akka.util.Switch.transcend(LockUtil.scala:27)	at akka.util.Switch.switchOn(LockUtil.scala:48)	at spray.servlet.Initializer.contextInitialized(Initializer.scala:33)	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5099)	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5615)	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899)	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1092)	at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1984)	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)	at java.util.concurrent.FutureTask.run(FutureTask.java:266)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)