인텔리제이(intellij) 계열 IDE 시작할 때 에러 (java.net.BindException: Address already in use: bind)

평소에 인텔리제이 계열 IDE(인텔리제이, 파이참, 안드로이드 스튜디오)를 많이 쓰는 편인데 갑자기 인텔리제이 계열 IDE를 시작하면 밑에 에러가 뜨면서 열리지가 않았다.

 

멘붕 그 자체...

Internal error. Please report to http://jb.gg/ide/critical-startup-errors

java.net.BindException: Address already in use: bind
at java.base/sun.nio.ch.Net.bind0(Native Method)
at java.base/sun.nio.ch.Net.bind(Net.java:461)
at java.base/sun.nio.ch.Net.bind(Net.java:453)
at java.base/sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:227)
at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:132)
at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:563)
at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1332)
at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:503)
at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:488)
at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:984)
at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:259)
at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:366)
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:405)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:906)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at java.base/java.lang.Thread.run(Thread.java:834)

-----
JRE 11.0.3+12-b304.10 amd64 by JetBrains s.r.o

 

대충 얘기를 읽어보면 포트가 이미 사용되고 있고 Hyper-v와 관련된 문제로 열지 못 한다. 이런 얘기인 것 같은데 아직 자세한 얘기는 잘 모르겠다ㅠㅠ

 

해결 방법은 아래와 같다.

 

0. Window PowerShell을 연다. 

 

1. Disable hyper-v (which will required a couple of restarts)

dism.exe /Online /Disable-Feature:Microsoft-Hyper-V

2. When you finish all the required restarts, reserve the port you want so hyper-v doesn't reserve it back

netsh int ipv4 add excludedportrange protocol=tcp startport=50051 numberofports=1

3. Re-Enable hyper-V (which will require a couple of restart)

dism.exe /Online /Enable-Feature:Microsoft-Hyper-V /All

 

참고 자료

intellij-support.jetbrains.com/hc/en-us/community/posts/360004973960-Critical-Internal-Error-on-Startup-of-IntelliJ-IDEA-Cannot-Lock-System-Folders-

Critical Internal Error on Startup of IntelliJ IDEA: "Cannot Lock System Folders"

github.com/docker/for-win/issues/3171#issuecomment-459205576

Unable to bind ports: Docker-for-Windows & Hyper-V excluding but not using important port ranges · Issue #3171 · docker/for-wi