IDEA、Pycharm等所有JetBrains产品同时报错：Internal error. Please refer to https://jb.gg/ide/critical-startup-errors
错误
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)
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Your JRE: 17.0.3+7-b469.37 amd64 (JetBrains s.r.o.)
D:\SoftDownload\IntelliJ IDEA 2022.2.1\jbr
原因与解决办法
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原因是：
java.net.BindException：地址已在使用中： 也就是idea启动时需要占用一些端口，但是已经被其它打开的软件占用了。
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解决办法
一般来说，这种问题重启电脑或者重置网络都不错的解决方法，如果不想使用以上方法可以自己试试找到你电脑中占用了该端口的软件停止它，然后启动IDEA
不过这通常是由Windows NAT驱动程序（winnat）引起的，停止并重新启动该服务可以解决问题。
CMD使用管理员启动：
输入：
net stop winnat然后启动IDEA，启动成功后，CMD里继续运行下面的命令。
输入：
net start winnat -
然后重启IDEA即可
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