运行"nodemon“时出错

Question

我已经下载了快递包和nodemon，我创建了一个服务器并呈现了我所有的ejs文件。在运行"nodemon“命令时，我得到了这个错误，具体问题是什么？

PS C:\Users\user\Desktop\my port> nodemon app
[nodemon] 2.0.4
[nodemon] to restart at any time, enter `rs`
[nodemon] watching path(s): *.*
[nodemon] watching extensions: js,mjs,json
[nodemon] starting `node app.js`
events.js:291
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRINUSE: address already in use :::3000
    at Server.setupListenHandle [as _listen2] (net.js:1316:16)
    at listenInCluster (net.js:1364:12)
    at Server.listen (net.js:1450:7)
    at Function.listen (C:\Users\user\Desktop\my port\node_modules\express\lib\application.js:618:24)
    at Object.<anonymous> (C:\Users\user\Desktop\my port\app.js:16:5)
    at Module._compile (internal/modules/cjs/loader.js:1251:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1272:10)
    at Module.load (internal/modules/cjs/loader.js:1100:32)
    at Function.Module._load (internal/modules/cjs/loader.js:962:14)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)
Emitted 'error' event on Server instance at:
    at emitErrorNT (net.js:1343:8)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  code: 'EADDRINUSE',
  errno: -4091,
  syscall: 'listen',
  address: '::',
  port: 3000
}
[nodemon] app crashed - waiting for file changes before starting...

Answer 1

您的系统已经在3000端口上运行了一些东西。

你可以做任何一个，

1. Kill进程运行在3000
2. 上或在当前应用程序中使用不同的端口(如3001、5000等)

Answer 2

嗨，用这个直接杀灭这个过程；

netstat -ano | findstr :XXXX

XXXX <

taskkill /F /PID XXXX

XXXX <--您想要杀死的端口的数目以及在第一个命令之后给您的是什么系统？

Answer 3

在命令提示符中键入此命令

netstat -ano | findstr :XXXX  <-THIS IS THE PORT NUMBER YOU used

它会给你这样的东西

TCP    0.0.0.0:8080 ||  0.0.0.0:0  || LISTENING | tttt

TCP    [::]:8080  ||  [::]:0  ||  LISTENING || tttt<--thiss is the number you needed

然后在命令提示符中键入以下内容

taskkill /PID tttt /F  <--then enter

result will be something like -->

PID tttt的进程已被终止。