我尝试实例化一个ActorSystem,如下所示
import akka.actor.{ActorRef, ActorSystem, Props}
object Main {
def main(args: Array[String]) {
val system: ActorSystem = ActorSystem("MySystem")
}
}
我的pom.xml中的依赖项是这样的:
<dependencies>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-actor_2.11</artifactId>
<version>2.5.0</version>
</dependency>
<dependency>
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-archetype-simple</artifactId>
<version>1.6</version>
</dependency>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-library</artifactId>
<version>2.11.1</version>
</dependency>
</dependencies>
我认为我在Scala和Akka版本中存在冲突。我尝试了多种组合,但总是遇到以下异常:
线程“主”中的异常java.lang.NoSuchMethodError:
scala.Predef$.ArrowAssoc(Ljava/lang/Object;)Ljava/lang/Object;
at akka.actor.setup.ActorSystemSetup$$anonfun$apply$1.apply(ActorSystemSetup.scala:36)
at akka.actor.setup.ActorSystemSetup$$anonfun$apply$1.apply(ActorSystemSetup.scala:36)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
at scala.collection.mutable.WrappedArray.foreach(WrappedArray.scala:34)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
at scala.collection.AbstractTraversable.map(Traversable.scala:105)
at akka.actor.setup.ActorSystemSetup$.apply(ActorSystemSetup.scala:36)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:287)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:232)
at Main$.main(Main.scala:9)
at Main.main(Main.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
你有什么主意吗?
我使用Intellij IDE,在“文件”->“项目结构”中,有一个名为“全局库”的部分,其中scala sdk 2.10受到了影响。切换到2.11更正问题
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