我无法构建我的scala/play应用程序。

[error] a.i.TcpListener - Bind failed for TCP channel on endpoint [/0.0.0.0:9000]
java.net.BindException: Address already in use: bind
    at sun.nio.ch.Net.bind0(Native Method)
    at sun.nio.ch.Net.bind(Net.java:433)
    at sun.nio.ch.Net.bind(Net.java:425)
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
    at akka.io.TcpListener.liftedTree1$1(TcpListener.scala:56)
    at akka.io.TcpListener.<init>(TcpListener.scala:53)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
akka.stream.impl.io.ConnectionSourceStage$$anon$2$$anon$1: Bind failed because of Address already in use: bind
Caused by: java.net.BindException: Address already in use: bind
    at sun.nio.ch.Net.bind0(Native Method)
    at sun.nio.ch.Net.bind(Net.java:433)
    at sun.nio.ch.Net.bind(Net.java:425)
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
    at akka.io.TcpListener.liftedTree1$1(TcpListener.scala:56)
    at akka.io.TcpListener.<init>(TcpListener.scala:53)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at akka.util.Reflect$.instantiate(Reflect.scala:65)
    at akka.actor.ArgsReflectConstructor.produce(IndirectActorProducer.scala:96)
    at akka.actor.Props.newActor(Props.scala:213)
    at akka.actor.ActorCell.newActor(ActorCell.scala:626)
    at akka.actor.ActorCell.create(ActorCell.scala:652)
    at akka.actor.ActorCell.invokeAll$1(ActorCell.scala:525)
    at akka.actor.ActorCell.systemInvoke(ActorCell.scala:547)
    at akka.dispatch.Mailbox.processAllSystemMessages(Mailbox.scala:282)
    at akka.dispatch.Mailbox.run(Mailbox.scala:223)
    at akka.dispatch.Mailbox.exec(Mailbox.scala:234)
    at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
    at akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
    at akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
    at akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
[trace] Stack trace suppressed: run 'last compile:run' for the full output.
[error] (compile:run) java.lang.reflect.InvocationTargetException
[error] Total time: 2 s, completed 01-Jun-2020 19:58:45
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256M; support was removed in 8.0

Process finished with exit code 1

有趣的是，占用端口9000的进程是idea.exe！！