听 EACCES：Windows 中的权限被拒绝

Question

在今天晚上之前，我卸载了 vscode 并再次安装后一切正常，我在尝试运行时遇到了这个问题，npm run app我不知道如何解决这个问题，我试图以管理员身份运行 vs 代码和命令提示符或 bash，但没有运气，我看到有很多针对此问题的修复程序，但其中大部分是针对 mac 的，他们使用他们修复了它，sudo但我没有看到任何适用于 Windows 的好的修复程序，如果有人能帮我解决这个问题，我将不胜感激

//this issue this my server code 
const express = require("express");
const app = express()
const port = process.env || 8080

app.get("/", (req, res) => {
  res.send("Hello");
});



app.listen(port,()=>{
  console.log("running on 8080")
})

这是完整的错误

events.js:187
      throw er; // Unhandled 'error' event
      ^

Error: listen EACCES: permission denied C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;D:\BookStore\node_modules\.bin;C:\Users\Samarth's PC\bin;C:\Program Files\Git\mingw64\bin;C:\Program Files\Git\usr\local\bin;C:\Program Files\Git\usr\bin;C:\Program Files\Git\usr\bin;C:\Program Files\Git\mingw64\bin;C:\Program Files\Git\usr\bin;C:\Users\Samarth's PC\bin;C:\ProgramData\Miniconda3;C:\ProgramData\Miniconda3\Library\mingw-w64\bin;C:\ProgramData\Miniconda3\Library\usr\bin;C:\ProgramData\Miniconda3\Library\bin;C:\ProgramData\Miniconda3\Scripts;C:\Python27;C:\Python27\Scripts;C:\Users\Samarth's PC\AppData\Local\Programs\Python\Python38-32\python.exe;C:\Program Files\nodejs;C:\ProgramData\chocolatey\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0;C:\WINDOWS\System32\OpenSSH;C:\Program Files (x86)\Yarn\bin;C:\Users\Samarth's PC\AppData\Local\Microsoft\WindowsApps;C:\Program Files\MongoDB\Server\4.0\bin;C:\Program Files\heroku\bin;C:\nvm;C:\Program Files\nodejs;C:\Python 3.8;C:\Users\Samarth's PC\AppData\Roaming\npm;C:\Users\Samarth's PC\AppData\Local\Yarn\bin;C:\Users\Samarth's PC\AppData\Local\Programs\Microsoft VS Code\bin;C:\Program Files\Git\usr\bin\vendor_perl;C:\Program Files\Git\usr\bin\core_perl
    at Server.setupListenHandle [as _listen2] (net.js:1283:19)
    at listenInCluster (net.js:1348:12)
    at Server.listen (net.js:1447:5)
    at Function.listen (D:\BookStore\node_modules\express\lib\application.js:618:24)
    at Object.<anonymous> (D:\BookStore\app.js:11:5)
    at Module._compile (internal/modules/cjs/loader.js:956:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:973:10)
    at Module.load (internal/modules/cjs/loader.js:812:32)
    at Function.Module._load (internal/modules/cjs/loader.js:724:14)
    at Function.Module.runMain (internal/modules/cjs/loader.js:1025:10)
Emitted 'error' event on Server instance at:
    at emitErrorNT (net.js:1327:8)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  code: 'EACCES',
  errno: 'EACCES',
  syscall: 'listen',
  address: "C:\\Program Files\\nodejs\\node_modules\\npm\\node_modules\\npm-lifecycle\\node-gyp-bin;D:\\BookStore\\node_modules\\.bin;C:\\Users\\Samarth's PC\\bin;C:\\Program Files\\Git\\mingw64\\bin;C:\\Program Files\\Git\\usr\\local\\bin;C:\\Program Files\\Git\\usr\\bin;C:\\Program Files\\Git\\usr\\bin;C:\\Program Files\\Git\\mingw64\\bin;C:\\Program Files\\Git\\usr\\bin;C:\\Users\\Samarth's PC\\bin;C:\\ProgramData\\Miniconda3;C:\\ProgramData\\Miniconda3\\Library\\mingw-w64\\bin;C:\\ProgramData\\Miniconda3\\Library\\usr\\bin;C:\\ProgramData\\Miniconda3\\Library\\bin;C:\\ProgramData\\Miniconda3\\Scripts;C:\\Python27;C:\\Python27\\Scripts;C:\\Users\\Samarth's PC\\AppData\\Local\\Programs\\Python\\Python38-32\\python.exe;C:\\Program Files\\nodejs;C:\\ProgramData\\chocolatey\\bin;C:\\WINDOWS\\system32;C:\\WINDOWS;C:\\WINDOWS\\System32\\Wbem;C:\\WINDOWS\\System32\\WindowsPowerShell\\v1.0;C:\\WINDOWS\\System32\\OpenSSH;C:\\Program Files (x86)\\Yarn\\bin;C:\\Users\\Samarth's PC\\AppData\\Local\\Microsoft\\WindowsApps;C:\\Program Files\\MongoDB\\Server\\4.0\\bin;C:\\Program Files\\heroku\\bin;C:\\nvm;C:\\Program Files\\nodejs;C:\\Python 3.8;C:\\Users\\Samarth's PC\\AppData\\Roaming\\npm;C:\\Users\\Samarth's PC\\AppData\\Local\\Yarn\\bin;C:\\Users\\Samarth's PC\\AppData\\Local\\Programs\\Microsoft VS Code\\bin;C:\\Program Files\\Git\\usr\\bin\\vendor_perl;C:\\Program Files\\Git\\usr\\bin\\core_perl",
  port: -1
}
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! bookstore@1.0.0 start: `node app.js "app"`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the bookstore@1.0.0 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\Samarth's PC\AppData\Roaming\npm-cache\_logs\2019-12-20T16_43_00_131Z-debug.log

//Error log is here
0 info it worked if it ends with ok
1 verbose cli [
1 verbose cli   'C:\\Program Files\\nodejs\\node.exe',
1 verbose cli   'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli   'start',
1 verbose cli   'app'
1 verbose cli ]
2 info using npm@6.12.0
3 info using node@v12.13.0
4 verbose run-script [ 'prestart', 'start', 'poststart' ]
5 info lifecycle bookstore@1.0.0~prestart: bookstore@1.0.0
6 info lifecycle bookstore@1.0.0~start: bookstore@1.0.0
7 verbose lifecycle bookstore@1.0.0~start: unsafe-perm in lifecycle true
8 verbose lifecycle bookstore@1.0.0~start: PATH: C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;D:\BookStore\node_modules\.bin;C:\Users\Samarth's PC\bin;C:\Program Files\Git\mingw64\bin;C:\Program Files\Git\usr\local\bin;C:\Program Files\Git\usr\bin;C:\Program Files\Git\usr\bin;C:\Program Files\Git\mingw64\bin;C:\Program Files\Git\usr\bin;C:\Users\Samarth's PC\bin;C:\ProgramData\Miniconda3;C:\ProgramData\Miniconda3\Library\mingw-w64\bin;C:\ProgramData\Miniconda3\Library\usr\bin;C:\ProgramData\Miniconda3\Library\bin;C:\ProgramData\Miniconda3\Scripts;C:\Python27;C:\Python27\Scripts;C:\Users\Samarth's PC\AppData\Local\Programs\Python\Python38-32\python.exe;C:\Program Files\nodejs;C:\ProgramData\chocolatey\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0;C:\WINDOWS\System32\OpenSSH;C:\Program Files (x86)\Yarn\bin;C:\Users\Samarth's PC\AppData\Local\Microsoft\WindowsApps;C:\Program Files\MongoDB\Server\4.0\bin;C:\Program Files\heroku\bin;C:\nvm;C:\Program Files\nodejs;C:\Python 3.8;C:\Users\Samarth's PC\AppData\Roaming\npm;C:\Users\Samarth's PC\AppData\Local\Yarn\bin;C:\Users\Samarth's PC\AppData\Local\Programs\Microsoft VS Code\bin;C:\Program Files\Git\usr\bin\vendor_perl;C:\Program Files\Git\usr\bin\core_perl
9 verbose lifecycle bookstore@1.0.0~start: CWD: D:\BookStore
10 silly lifecycle bookstore@1.0.0~start: Args: [ '/d /s /c', 'node app.js "app"' ]
11 silly lifecycle bookstore@1.0.0~start: Returned: code: 1  signal: null
12 info lifecycle bookstore@1.0.0~start: Failed to exec start script
13 verbose stack Error: bookstore@1.0.0 start: `node app.js "app"`
13 verbose stack Exit status 1
13 verbose stack     at EventEmitter.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\index.js:332:16)
13 verbose stack     at EventEmitter.emit (events.js:210:5)
13 verbose stack     at ChildProcess.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\lib\spawn.js:55:14)
13 verbose stack     at ChildProcess.emit (events.js:210:5)
13 verbose stack     at maybeClose (internal/child_process.js:1021:16)
13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:283:5)
14 verbose pkgid bookstore@1.0.0
15 verbose cwd D:\BookStore
16 verbose Windows_NT 10.0.18362
17 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "start" "app"
18 verbose node v12.13.0
19 verbose npm  v6.12.0
20 error code ELIFECYCLE
21 error errno 1
22 error bookstore@1.0.0 start: `node app.js "app"`
22 error Exit status 1
23 error Failed at the bookstore@1.0.0 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

对于我在 env 文件中的情况，我添加了一个不应该添加的分号，我已经写了

PORT=5000;

代替

PORT=5000

Answer 2

对我来说，当 Windows 10 有一些待更新时，这种情况经常发生。要解决此问题，我需要安装所有挂起的更新并在此过程中重新启动 1-2 次。

Answer 3

嗨，任何来到这里但没有找到任何答案的人。我有一个我认为会有所帮助的答案。它为我解决了这个问题。在某些情况下，端口上什么都没有运行，但某些应用程序甚至您的代码都无法运行修复程序，按此顺序：

1. 以管理员身份打开 PowerShell。

2. 使用以下命令停止 winnat：

   净停止赢

3. 使用以下命令再次启动 winnat：

   净启动winnat

这在许多情况下为我解决了问题。无需重启。我希望它也能帮助你。

编辑：我深入研究了这个问题，发现问题是端口没有以正确的方式关闭，这很容易基于终止终端窗口或在端口上运行的应用程序而导致。

Answer 4

尝试这个步骤

• 在运行此脚本之前，以管理员身份运行命令提示符/powershell
• 完全删除 node_modules 文件夹并使用 npm install 重新安装依赖项，然后运行启动脚本