监听EACCES：npm运行JHipster Spring Boot + Angular项目时权限被拒绝0.0.0.0:3001

Question

下面是我在JHipster Spring Boot + Angular项目中出现的错误消息[[nmp run，被认为是手动更改此端口，但在项目中的任何地方都找不到3001端口，已删除node_modules和package-lock.json文件，重新运行npm install命令，但这也无济于事。

 DONE  Compiled successfully in 149404ms                                                                                                                     12:11:04 AM

i ｢wdm｣:    493 modules
i ｢wdm｣: Compiled successfully.
[Browsersync] Proxying: http://localhost:9060
[Browsersync] Access URLs:
 --------------------------------------
       Local: http://localhost:9000
    External: http://192.168.137.1:9000
 --------------------------------------
          UI: http://localhost:3001
 UI External: http://localhost:3001
 --------------------------------------
events.js:287
      throw er; // Unhandled 'error' event
      ^

Error: listen EACCES: permission denied 0.0.0.0:3001
    at Server.setupListenHandle [as _listen2] (net.js:1296:21)
    at listenInCluster (net.js:1361:12)
    at Server.listen (net.js:1449:7)
    at Object.startServer [as fn] (D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\browser-sync-ui\lib\async.js:123:39)
    at D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\browser-sync-ui\lib\UI.js:184:14
    at iterate (D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\async-each-series\index.js:8:5)
    at D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\async-each-series\index.js:16:16
    at D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\browser-sync-ui\lib\UI.js:192:13
    at Object.setUrlOptions [as fn] (D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\browser-sync-ui\lib\async.js:76:9)
    at D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\browser-sync-ui\lib\UI.js:184:14
    at iterate (D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\async-each-series\index.js:8:5)
    at D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\async-each-series\index.js:16:16
    at D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\browser-sync-ui\lib\UI.js:192:13
    at Object.setBsOptions [as fn] (D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\browser-sync-ui\lib\async.js:48:9)
    at D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\browser-sync-ui\lib\UI.js:184:14
    at iterate (D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\async-each-series\index.js:8:5)
Emitted 'error' event on Server instance at:
    at emitErrorNT (net.js:1340:8)
    at processTicksAndRejections (internal/process/task_queues.js:84:21) {
  code: 'EACCES',
  errno: 'EACCES',
  syscall: 'listen',
  address: '0.0.0.0',
  port: 3001
}
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] webpack-dev-server: `node --max_old_space_size=4096 node_modules/webpack-dev-server/bin/webpack-dev-server.js "--config" "webpack/webpack.dev.js" "--inline" "--hot" "--port=9060" "--watch-content-base" "--env.stats=minimal"`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] webpack-dev-server script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Voyager\AppData\Roaming\npm-cache\_logs\2020-04-21T18_41_11_152Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] webpack:dev: `npm run webpack-dev-server -- --config webpack/webpack.dev.js --inline --hot --port=9060 --watch-content-base --env.stats=minimal`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] webpack:dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Voyager\AppData\Roaming\npm-cache\_logs\2020-04-21T18_41_11_255Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] start: `npm run webpack:dev`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Voyager\AppData\Roaming\npm-cache\_logs\2020-04-21T18_41_11_388Z-debug.log

第一日志文件

2020-04-21T18_41_11_152Z-debug.log

0 info it worked if it ends with ok
1 verbose cli [
1 verbose cli   'D:\\Installed\\WebDevelopment\\nodejs\\node.exe',
1 verbose cli   'D:\\Installed\\WebDevelopment\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli   'run',
1 verbose cli   'webpack-dev-server',
1 verbose cli   '--',
1 verbose cli   '--config',
1 verbose cli   'webpack/webpack.dev.js',
1 verbose cli   '--inline',
1 verbose cli   '--hot',
1 verbose cli   '--port=9060',
1 verbose cli   '--watch-content-base',
1 verbose cli   '--env.stats=minimal'
1 verbose cli ]
2 info using [email protected]
3 info using [email protected]
4 verbose run-script [
4 verbose run-script   'prewebpack-dev-server',
4 verbose run-script   'webpack-dev-server',
4 verbose run-script   'postwebpack-dev-server'
4 verbose run-script ]
5 info lifecycle [email protected]~prewebpack-dev-server: [email protected]
6 info lifecycle [email protected]~webpack-dev-server: [email protected]
7 verbose lifecycle [email protected]~webpack-dev-server: unsafe-perm in lifecycle true
8 verbose lifecycle [email protected]~webpack-dev-server: PATH: D:\Installed\WebDevelopment\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\.bin;D:\Installed\WebDevelopment\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\.bin;D:\Installed\WebDevelopment\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\.bin;C:\ProgramData\DockerDesktop\version-bin;C:\Program Files\Docker\Docker\Resources\bin;C:\Python27\;C:\Python27\Scripts;C:\ProgramData\Boxstarter;C:\Program Files\Broadcom\Broadcom 802.11 Network Adapter;D:\Installed\Python36\Scripts\;D:\Installed\Python36\;C:\ProgramData\Oracle\Java\javapath;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;D:\Installed\AndroidStudio\Sdk\platform-tools;D:\Installed\OpenCV\OpenCV_3.4.1\opencv\build\x64\vc15\bin;D:\Installed\Java\javaEE_8\glassfish5\bin;D:\Installed\Java\apache-tomcat-9.0.13\bin;C:\WINDOWS\System32\OpenSSH\;D:\Installed\xampp\htdocs\;D:\Installed\CodeBlocks\MinGW\bin;C:\ProgramData\chocolatey\bin;D:\Installed\Microsoft VS Code\bin;C:\Program Files\Microsoft\Web Platform Installer\;C:\Program Files (x86)\Microsoft ASP.NET\ASP.NET Web Pages\v1.0\;C:\Program Files (x86)\Windows Kits\8.0\Windows Performance Toolkit\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;D:\Installed\Java\JavaSE_1.8.0\jdk1.8.0_192\bin;D:\Installed\Java\JavaSE_1.8.0\jdk1.8.0_192\jre\bin;D:\Installed\Java\apache-tomcat-9.0.13\bin\startup.bat;D:\Installed\Java\apache-tomcat-9.0.13\bin\shutdown.bat;D:\Installed\Java\jboss-sec-6.X\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;D:\Installed\Git\cmd;D:\Installed\Git\bin;D:\Installed\Go\bin;E:\ProjectWorkspace\HyperLedgerWorkspace\HyperLedgerFabricSamples\fabric-samples\bin;D:\Installed\curl-7.66.0-win64-mingw\bin;D:\Installed\Java\jdk1.7.0_80;D:\Installed\Java\jdk1.7.0_80\jre;D:\Installed\DataBase\PostgreSQLPortable\pgsql12\bin;D:\Installed\DataBase\PostgreSQLPortable\pgsql12;D:\Installed\apache-maven-3.6.3\bin;D:\Installed\WebDevelopment\nodejs\;D:\Installed\Ruby26-x64\bin;C:\Users\Voyager\AppData\Local\Microsoft\WindowsApps;D:\Installed\WebDevelopment\npm-global;C:\Users\Voyager\AppData\Local\Microsoft\WindowsApps;C:\Users\Voyager\AppData\Local\atom\bin;C:\Users\Voyager\go\bin;C:\Users\Voyager\AppData\Roaming\npm
9 verbose lifecycle [email protected]~webpack-dev-server: CWD: D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack
10 silly lifecycle [email protected]~webpack-dev-server: Args: [
10 silly lifecycle   '/d /s /c',
10 silly lifecycle   'node --max_old_space_size=4096 node_modules/webpack-dev-server/bin/webpack-dev-server.js "--config" "webpack/webpack.dev.js" "--inline" "--hot" "--port=9060" "--watch-content-base" "--env.stats=minimal"'
10 silly lifecycle ]
11 silly lifecycle [email protected]~webpack-dev-server: Returned: code: 1  signal: null
12 info lifecycle [email protected]~webpack-dev-server: Failed to exec webpack-dev-server script
13 verbose stack Error: [email protected] webpack-dev-server: `node --max_old_space_size=4096 node_modules/webpack-dev-server/bin/webpack-dev-server.js "--config" "webpack/webpack.dev.js" "--inline" "--hot" "--port=9060" "--watch-content-base" "--env.stats=minimal"`
13 verbose stack Exit status 1
13 verbose stack     at EventEmitter.<anonymous> (D:\Installed\WebDevelopment\nodejs\node_modules\npm\node_modules\npm-lifecycle\index.js:332:16)
13 verbose stack     at EventEmitter.emit (events.js:310:20)
13 verbose stack     at ChildProcess.<anonymous> (D:\Installed\WebDevelopment\nodejs\node_modules\npm\node_modules\npm-lifecycle\lib\spawn.js:55:14)
13 verbose stack     at ChildProcess.emit (events.js:310:20)
13 verbose stack     at maybeClose (internal/child_process.js:1021:16)
13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:286:5)
14 verbose pkgid [email protected]
15 verbose cwd D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack
16 verbose Windows_NT 10.0.19041
17 verbose argv "D:\\Installed\\WebDevelopment\\nodejs\\node.exe" "D:\\Installed\\WebDevelopment\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "webpack-dev-server" "--" "--config" "webpack/webpack.dev.js" "--inline" "--hot" "--port=9060" "--watch-content-base" "--env.stats=minimal"
18 verbose node v12.16.2
19 verbose npm  v6.14.4
20 error code ELIFECYCLE
21 error errno 1
22 error [email protected] webpack-dev-server: `node --max_old_space_size=4096 node_modules/webpack-dev-server/bin/webpack-dev-server.js "--config" "webpack/webpack.dev.js" "--inline" "--hot" "--port=9060" "--watch-content-base" "--env.stats=minimal"`
22 error Exit status 1
23 error Failed at the [email protected] webpack-dev-server script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]

第二日志文件

2020-04-21T18_41_11_255Z-debug.log

0 info it worked if it ends with ok
1 verbose cli [
1 verbose cli   'D:\\Installed\\WebDevelopment\\nodejs\\node.exe',
1 verbose cli   'D:\\Installed\\WebDevelopment\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli   'run',
1 verbose cli   'webpack:dev'
1 verbose cli ]
2 info using [email protected]
3 info using [email protected]
4 verbose run-script [ 'prewebpack:dev', 'webpack:dev', 'postwebpack:dev' ]
5 info lifecycle [email protected]~prewebpack:dev: [email protected]
6 info lifecycle [email protected]~webpack:dev: [email protected]
7 verbose lifecycle [email protected]~webpack:dev: unsafe-perm in lifecycle true
8 verbose lifecycle [email protected]~webpack:dev: PATH: D:\Installed\WebDevelopment\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\.bin;D:\Installed\WebDevelopment\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\.bin;C:\ProgramData\DockerDesktop\version-bin;C:\Program Files\Docker\Docker\Resources\bin;C:\Python27\;C:\Python27\Scripts;C:\ProgramData\Boxstarter;C:\Program Files\Broadcom\Broadcom 802.11 Network Adapter;D:\Installed\Python36\Scripts\;D:\Installed\Python36\;C:\ProgramData\Oracle\Java\javapath;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;D:\Installed\AndroidStudio\Sdk\platform-tools;D:\Installed\OpenCV\OpenCV_3.4.1\opencv\build\x64\vc15\bin;D:\Installed\Java\javaEE_8\glassfish5\bin;D:\Installed\Java\apache-tomcat-9.0.13\bin;C:\WINDOWS\System32\OpenSSH\;D:\Installed\xampp\htdocs\;D:\Installed\CodeBlocks\MinGW\bin;C:\ProgramData\chocolatey\bin;D:\Installed\Microsoft VS Code\bin;C:\Program Files\Microsoft\Web Platform Installer\;C:\Program Files (x86)\Microsoft ASP.NET\ASP.NET Web Pages\v1.0\;C:\Program Files (x86)\Windows Kits\8.0\Windows Performance Toolkit\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;D:\Installed\Java\JavaSE_1.8.0\jdk1.8.0_192\bin;D:\Installed\Java\JavaSE_1.8.0\jdk1.8.0_192\jre\bin;D:\Installed\Java\apache-tomcat-9.0.13\bin\startup.bat;D:\Installed\Java\apache-tomcat-9.0.13\bin\shutdown.bat;D:\Installed\Java\jboss-sec-6.X\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;D:\Installed\Git\cmd;D:\Installed\Git\bin;D:\Installed\Go\bin;E:\ProjectWorkspace\HyperLedgerWorkspace\HyperLedgerFabricSamples\fabric-samples\bin;D:\Installed\curl-7.66.0-win64-mingw\bin;D:\Installed\Java\jdk1.7.0_80;D:\Installed\Java\jdk1.7.0_80\jre;D:\Installed\DataBase\PostgreSQLPortable\pgsql12\bin;D:\Installed\DataBase\PostgreSQLPortable\pgsql12;D:\Installed\apache-maven-3.6.3\bin;D:\Installed\WebDevelopment\nodejs\;D:\Installed\Ruby26-x64\bin;C:\Users\Voyager\AppData\Local\Microsoft\WindowsApps;D:\Installed\WebDevelopment\npm-global;C:\Users\Voyager\AppData\Local\Microsoft\WindowsApps;C:\Users\Voyager\AppData\Local\atom\bin;C:\Users\Voyager\go\bin;C:\Users\Voyager\AppData\Roaming\npm
9 verbose lifecycle [email protected]~webpack:dev: CWD: D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack
10 silly lifecycle [email protected]~webpack:dev: Args: [
10 silly lifecycle   '/d /s /c',
10 silly lifecycle   'npm run webpack-dev-server -- --config webpack/webpack.dev.js --inline --hot --port=9060 --watch-content-base --env.stats=minimal'
10 silly lifecycle ]
11 silly lifecycle [email protected]~webpack:dev: Returned: code: 1  signal: null
12 info lifecycle [email protected]~webpack:dev: Failed to exec webpack:dev script
13 verbose stack Error: [email protected] webpack:dev: `npm run webpack-dev-server -- --config webpack/webpack.dev.js --inline --hot --port=9060 --watch-content-base --env.stats=minimal`
13 verbose stack Exit status 1
13 verbose stack     at EventEmitter.<anonymous> (D:\Installed\WebDevelopment\nodejs\node_modules\npm\node_modules\npm-lifecycle\index.js:332:16)
13 verbose stack     at EventEmitter.emit (events.js:310:20)
13 verbose stack     at ChildProcess.<anonymous> (D:\Installed\WebDevelopment\nodejs\node_modules\npm\node_modules\npm-lifecycle\lib\spawn.js:55:14)
13 verbose stack     at ChildProcess.emit (events.js:310:20)
13 verbose stack     at maybeClose (internal/child_process.js:1021:16)
13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:286:5)
14 verbose pkgid [email protected]
15 verbose cwd D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack
16 verbose Windows_NT 10.0.19041
17 verbose argv "D:\\Installed\\WebDevelopment\\nodejs\\node.exe" "D:\\Installed\\WebDevelopment\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "webpack:dev"
18 verbose node v12.16.2
19 verbose npm  v6.14.4
20 error code ELIFECYCLE
21 error errno 1
22 error [email protected] webpack:dev: `npm run webpack-dev-server -- --config webpack/webpack.dev.js --inline --hot --port=9060 --watch-content-base --env.stats=minimal`
22 error Exit status 1
23 error Failed at the [email protected] webpack:dev script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]

第三日志文件

2020-04-21T18_41_11_388Z-debug.log

0 info it worked if it ends with ok
1 verbose cli [
1 verbose cli   'D:\\Installed\\WebDevelopment\\nodejs\\node.exe',
1 verbose cli   'D:\\Installed\\WebDevelopment\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli   'start'
1 verbose cli ]
2 info using [email protected]
3 info using [email protected]
4 verbose run-script [ 'prestart', 'start', 'poststart' ]
5 info lifecycle [email protected]~prestart: [email protected]
6 info lifecycle [email protected]~start: [email protected]
7 verbose lifecycle [email protected]~start: unsafe-perm in lifecycle true
8 verbose lifecycle [email protected]~start: PATH: D:\Installed\WebDevelopment\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack\node_modules\.bin;C:\ProgramData\DockerDesktop\version-bin;C:\Program Files\Docker\Docker\Resources\bin;C:\Python27\;C:\Python27\Scripts;C:\ProgramData\Boxstarter;C:\Program Files\Broadcom\Broadcom 802.11 Network Adapter;D:\Installed\Python36\Scripts\;D:\Installed\Python36\;C:\ProgramData\Oracle\Java\javapath;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;D:\Installed\AndroidStudio\Sdk\platform-tools;D:\Installed\OpenCV\OpenCV_3.4.1\opencv\build\x64\vc15\bin;D:\Installed\Java\javaEE_8\glassfish5\bin;D:\Installed\Java\apache-tomcat-9.0.13\bin;C:\WINDOWS\System32\OpenSSH\;D:\Installed\xampp\htdocs\;D:\Installed\CodeBlocks\MinGW\bin;C:\ProgramData\chocolatey\bin;D:\Installed\Microsoft VS Code\bin;C:\Program Files\Microsoft\Web Platform Installer\;C:\Program Files (x86)\Microsoft ASP.NET\ASP.NET Web Pages\v1.0\;C:\Program Files (x86)\Windows Kits\8.0\Windows Performance Toolkit\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;D:\Installed\Java\JavaSE_1.8.0\jdk1.8.0_192\bin;D:\Installed\Java\JavaSE_1.8.0\jdk1.8.0_192\jre\bin;D:\Installed\Java\apache-tomcat-9.0.13\bin\startup.bat;D:\Installed\Java\apache-tomcat-9.0.13\bin\shutdown.bat;D:\Installed\Java\jboss-sec-6.X\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;D:\Installed\Git\cmd;D:\Installed\Git\bin;D:\Installed\Go\bin;E:\ProjectWorkspace\HyperLedgerWorkspace\HyperLedgerFabricSamples\fabric-samples\bin;D:\Installed\curl-7.66.0-win64-mingw\bin;D:\Installed\Java\jdk1.7.0_80;D:\Installed\Java\jdk1.7.0_80\jre;D:\Installed\DataBase\PostgreSQLPortable\pgsql12\bin;D:\Installed\DataBase\PostgreSQLPortable\pgsql12;D:\Installed\apache-maven-3.6.3\bin;D:\Installed\WebDevelopment\nodejs\;D:\Installed\Ruby26-x64\bin;C:\Users\Voyager\AppData\Local\Microsoft\WindowsApps;D:\Installed\WebDevelopment\npm-global;C:\Users\Voyager\AppData\Local\Microsoft\WindowsApps;C:\Users\Voyager\AppData\Local\atom\bin;C:\Users\Voyager\go\bin;C:\Users\Voyager\AppData\Roaming\npm
9 verbose lifecycle [email protected]~start: CWD: D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack
10 silly lifecycle [email protected]~start: Args: [ '/d /s /c', 'npm run webpack:dev' ]
11 silly lifecycle [email protected]~start: Returned: code: 1  signal: null
12 info lifecycle [email protected]~start: Failed to exec start script
13 verbose stack Error: [email protected] start: `npm run webpack:dev`
13 verbose stack Exit status 1
13 verbose stack     at EventEmitter.<anonymous> (D:\Installed\WebDevelopment\nodejs\node_modules\npm\node_modules\npm-lifecycle\index.js:332:16)
13 verbose stack     at EventEmitter.emit (events.js:310:20)
13 verbose stack     at ChildProcess.<anonymous> (D:\Installed\WebDevelopment\nodejs\node_modules\npm\node_modules\npm-lifecycle\lib\spawn.js:55:14)
13 verbose stack     at ChildProcess.emit (events.js:310:20)
13 verbose stack     at maybeClose (internal/child_process.js:1021:16)
13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:286:5)
14 verbose pkgid [email protected]
15 verbose cwd D:\Projects\EclipseWorkspace\JavaEE-STS\ProblemStackWorkspace\ProblemStack
16 verbose Windows_NT 10.0.19041
17 verbose argv "D:\\Installed\\WebDevelopment\\nodejs\\node.exe" "D:\\Installed\\WebDevelopment\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "start"
18 verbose node v12.16.2
19 verbose npm  v6.14.4
20 error code ELIFECYCLE
21 error errno 1
22 error [email protected] start: `npm run webpack:dev`
22 error Exit status 1
23 error Failed at the [email protected] start script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]

Answer 1

您可能在上一次运行中在后台运行了恶意进程。如果您使用的是Windows，则可以打开TaskManager并查找仍在运行的节点进程。否则，您可以尝试通过以下命令使用powershell来找出哪个进程正在使用该端口：

Get-Process -Id (Get-NetTCPConnection -LocalPort portNumber).OwningProcess

或在Linux中：
netstat -tulpn | grep LISTEN