Reputation: 71
When I start a simple akka-http-server
, I get an exception. I searched all over the internet and found two solutions which are not working for me:
I have no idea how to resolve this problem, kindly tell me how to resolve it.
application.conf
akka {
actor {
provider = "akka.remote.RemoteActorRefProvider"
}
remote {
enabled-transports = ["akka.remote.netty.tcp"]
netty.tcp {
hostname = "127.0.0.1"
port = 2552
}
}
}
main class
package com.akkademo;
import akka.actor.ActorSystem;
import akka.actor.Props;
import com.typesafe.config.Config;
import com.typesafe.config.ConfigFactory;
public class Main {
public static void main(String[] args) {
ActorSystem actorSystem = ActorSystem.create("akkademo", ConfigFactory.load());
Config config = actorSystem.settings().config();
actorSystem.actorOf(Props.create(AkkademoDb.class), "akkademo-db");
}
}
pom.xml
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<jdk.version>1.8</jdk.version>
<scala>2.11</scala>
<scala.version>2.11.8</scala.version>
<akka.version>2.4.14</akka.version>
<akka.remote>2.3.6</akka.remote>
<akka.compat>0.7.0</akka.compat>
<akka.test>2.5.9</akka.test>
</properties>
<dependencies>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>RELEASE</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-testkit_${scala}</artifactId>
<version>${akka.test}</version>
</dependency>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-remote_${scala}</artifactId>
<version>${akka.remote}</version>
</dependency>
<dependency>
<groupId>org.scala-lang.modules</groupId>
<artifactId>scala-java8-compat_${scala}</artifactId>
<version>${akka.compat}</version>
</dependency>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-actor_${scala}</artifactId>
<version>${akka.version}</version>
</dependency>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-slf4j_${scala}</artifactId>
<version>${akka.version}</version>
</dependency>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-library</artifactId>
<version>${scala.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>aliyun</id>
<name>aliyun</name>
<url>http://maven.aliyun.com/nexus/content/groups/public</url>
</repository>
</repositories>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>${jdk.version}</source>
<target>${jdk.version}</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
Exception in thread "main" java.lang.NoSuchMethodError: akka.actor.LocalActorRefProvider.log()Lakka/event/LoggingAdapter; at akka.remote.RemoteActorRefProvider.(RemoteActorRefProvider.scala:128) 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:423) at akka.actor.ReflectiveDynamicAccess$$anonfun$createInstanceFor$2.apply(ReflectiveDynamicAccess.scala:32) at scala.util.Try$.apply(Try.scala:192) at akka.actor.ReflectiveDynamicAccess.createInstanceFor(ReflectiveDynamicAccess.scala:27) at akka.actor.ReflectiveDynamicAccess$$anonfun$createInstanceFor$3.apply(ReflectiveDynamicAccess.scala:38) at akka.actor.ReflectiveDynamicAccess$$anonfun$createInstanceFor$3.apply(ReflectiveDynamicAccess.scala:38) at scala.util.Success.flatMap(Try.scala:231) at akka.actor.ReflectiveDynamicAccess.createInstanceFor(ReflectiveDynamicAccess.scala:38) at akka.actor.ActorSystemImpl.liftedTree1$1(ActorSystem.scala:620) at akka.actor.ActorSystemImpl.(ActorSystem.scala:613) at akka.actor.ActorSystem$.apply(ActorSystem.scala:142) at akka.actor.ActorSystem$.apply(ActorSystem.scala:119) at akka.actor.ActorSystem$.create(ActorSystem.scala:67) at akka.actor.ActorSystem.create(ActorSystem.scala) at com.akkademo.Main.main(Main.java:15)
Upvotes: 0
Views: 667
Reputation: 1754
You issue is propably caused by using different minor versions of akka-remoting
and the core akka-actor
package.
Set the akka.version
and akka.remote
property to the same value. The current release is 2.5.19
.
Upvotes: 1