vscode 调试 nodejs，浏览器在请求koa router的接口时进不到断点内，为什么？

Question

这是配置 ，项目是nuxt生成的，
浏览器在请求koa router的接口时进不到断点内，为什么？
index.js:57 有报错
Error: listen EADDRINUSE 127.0.0.1:3000
source-map-support.js:422

at Object._errnoException (util.js:1024:11)
at _exceptionWithHostPort (util.js:1046:20)
at Server.setupListenHandle [as _listen2] (net.js:1351:14)
at listenInCluster (net.js:1392:12)
at doListen (net.js:1501:7)
at _combinedTickCallback (internal/process/next_tick.js:141:11)
at process._tickCallback (internal/process/next_tick.js:180:9)

Answer 1

Error: listen EADDRINUSE 127.0.0.1:3000

EADDRINUSE = Error Address in Use 端口被占用了吧。。你查查吧