object SimpleAkkaTest {  def main(args: Array[String]) {    val system = ActorSystem.create("system")    val work =system.actorOf(Props[Worker],"worker-1")    work ! 1  }}class Worker extends Actor {  override def receive = {    case 1=> println("1")    case _ => println("_")  }}

Exception in thread "main" java.lang.ClassNotFoundException: akka.simpleAkka.SimpleAkkaTest

at java.net.URLClassLoader.findClass(URLClassLoader.java:381)

at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)

at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Class.java:264)

at com.intellij.rt.execution.application.AppMain.main(AppMain.java:116)

解决方案：项目->open module setting->Modules->Dependencies  加上scala sdk的library