一、问题背景
启动idea时,报错如下:
Internal error. Please refer to https://jb.gg/ide/critical-startup-errors com.intellij.ide.plugins.StartupAbortedException: Cannot start app at com.intellij.idea.StartupUtil.lambda$start$15(StartupUtil.java:265) at java.base/java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:990) at java.base/java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:974) at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510) at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1773) at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1760) at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373) at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182) at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655) at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622) at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165) Caused by: java.net.BindException: Address already in use: bind at java.base/sun.nio.ch.Net.bind0(Native Method) at java.base/sun.nio.ch.Net.bind(Net.java:555) at java.base/sun.nio.ch.ServerSocketChannelImpl.netBind(ServerSocketChannelImpl.java:337) at java.base/sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:294) at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:134) at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:562) 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:260) 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:469) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:503) at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.base/java.lang.Thread.run(Thread.java:833) ----- Your JRE: 17.0.4.1+7-b469.62 amd64 (JetBrains s.r.o.) D:\v4_dev_ide\ideaIU-2022.2.3.win\jbr
二、解决方案:
- 以管理员身份打开 cmd:
- 依次执行以下两条命令:
net stop winnat net start winnat
- 再次启动idea,可以发现,问题已经解决了。完美。
这里也还有些地方,暂时还不知道啥原因:1. idea被占用的端口是什么? 2. net stop winnat的作用是啥?