IDEA 日志路径``C:\Users\xxx\AppData\Local\JetBrains\IntelliJIdea2020.2\log\idea.log`` 具体报错如下： ```bash 2020-09-13 12:00:49,208 [ 6690] ERROR - llij.ide.plugins.PluginManager - java.net.BindException: Address already in use: bind java.util.concurrent.CompletionException: java.net.BindException: Address already in use: bind at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:314) at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:319) at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1702) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:668) at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:665) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:665) at java.base/java.lang.Thread.run(Thread.java:834) Caused by: java.net.BindException: Address already in use: bind at java.base/sun.nio.ch.Net.bind0(Native Method) at java.base/sun.nio.ch.Net.bind(Net.java:455) at java.base/sun.nio.ch.Net.bind(Net.java:447) at java.base/sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:227) at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:134) at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:550) at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1334) at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:506) at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:491) at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:973) at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:248) at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:356) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500) at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ... 1 more ``` ## 参考 - [Critical Internal Error on Startup of IntelliJ IDEA: "Cannot Lock System Folders"](https://intellij-support.jetbrains.com/hc/en-us/community/posts/360004973960-Critical-Internal-Error-on-Startup-of-IntelliJ-IDEA-Cannot-Lock-System-Folders-) - [Start Failed, Internal error: recovering IDE to the working state after the critical startup error](https://intellij-support.jetbrains.com/hc/en-us/articles/360007568559?page=1#comment_360001282960) - [Unable to bind ports: Docker-for-Windows & Hyper-V excluding but not using important port ranges #3171](https://github.com/docker/for-win/issues/3171) ## 原因 原因应该是IDEA使用的一批端口范围刚好被``Hyper-V``排除了 ## 解决办法 本人最终解决办法记录一下 - 1.先关闭了 Hyper-V ```bash dism.exe /Online /Disable-Feature:Microsoft-Hyper-V ``` > 如果需要打开，使用：``dism.exe /Online /Enable-Feature:Microsoft-Hyper-V /All`` - 2.重启 winsock ```bash netsh winsock reset ``` ## 补充 10-1节后，笔者又遇到了一次这种情况。。上述方法各种尝试无效，最终通过重新安装 IDEA 得以解决~