node.js - yarn 安装抛出错误 : gyp verb `which` failed Error: not found: python2

Question

在 React 项目中，我尝试运行“yarn install”，但它抛出了以下错误:

gyp verb which failed Error: not found: python2

完整的错误回溯:

yarn install v1.22.4
warning package-lock.json found. Your project contains lock files generated by tools other than Yarn. It is advised not to mix package managers in order to avoid resolution inconsistencies caused by unsynchronized lock files. To clear this warning, remove package-lock.json.
[1/4] Resolving packages...
[2/4] Fetching packages...
info fsevents@2.1.2: The platform "win32" is incompatible with this module.
info "fsevents@2.1.2" is an optional dependency and failed compatibility check. Excluding it from installation.
info fsevents@1.2.12: The platform "win32" is incompatible with this module.
info "fsevents@1.2.12" is an optional dependency and failed compatibility check. Excluding it from installation.
[3/4] Linking dependencies...
warning " > @coreui/coreui@3.0.0" has unmet peer dependency "perfect-scrollbar@^1.5.0".
warning " > @coreui/coreui@3.0.0" has unmet peer dependency "@popperjs/core@^2.0.6".
warning " > @coreui/react@2.5.7" has incorrect peer dependency "@coreui/coreui@^2.1.16".
warning " > @coreui/react@2.5.7" has unmet peer dependency "mutationobserver-shim@^0.3.3".
warning " > @testing-library/user-event@7.2.1" has unmet peer dependency "@testing-library/dom@>=5".
warning " > react-bootstrap-table-next@4.0.1" has unmet peer dependency "classnames@^2.2.5".
warning " > react-bootstrap-table-next@4.0.1" has unmet peer dependency "prop-types@^15.0.0".
warning "react-scripts > @typescript-eslint/eslint-plugin > tsutils@3.17.1" has unmet peer dependency "typescript@>=2.8.0 || >= 3.2.0-dev || >= 3.3.0-dev || >= 3.4.0-dev || >= 3.5.0-dev || >= 3.6.0-dev || >= 3.
6.0-beta || >= 3.7.0-dev || >= 3.7.0-beta".
[4/4] Building fresh packages...
[-/4] ⡀ waiting...
[-/4] ⡀ waiting...
[3/4] ⡀ node-sass
error C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\node-sass: Command failed.
Exit code: 1
Command: node scripts/build.js
Arguments:
Directory: C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\node-sass
Output:
Binary found at C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\node-sass\vendor\win32-x64-72\binding.node
Testing binary
Binary has a problem: Error: Cannot find module './_baseClone'
Require stack:
- C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\lodash\cloneDeep.js
- C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\node-sass\lib\index.js
- C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\node-sass\scripts\build.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:957:15)
    at Function.Module._load (internal/modules/cjs/loader.js:840:27)
    at Module.require (internal/modules/cjs/loader.js:1019:19)
    at require (internal/modules/cjs/helpers.js:77:18)
    at Object.<anonymous> (C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\lodash\cloneDeep.js:1:17)
    at Module._compile (internal/modules/cjs/loader.js:1133:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1153:10)
    at Module.load (internal/modules/cjs/loader.js:977:32)
    at Function.Module._load (internal/modules/cjs/loader.js:877:14)
    at Module.require (internal/modules/cjs/loader.js:1019:19) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    'C:\\Users\\Rahul\\yantra-front\\cargo_frontend\\cargo-app\\node_modules\\lodash\\cloneDeep.js',
    'C:\\Users\\Rahul\\yantra-front\\cargo_frontend\\cargo-app\\node_modules\\node-sass\\lib\\index.js',
    'C:\\Users\\Rahul\\yantra-front\\cargo_frontend\\cargo-app\\node_modules\\node-sass\\scripts\\build.js'
  ]
}
Building the binary locally
Building: C:\Program Files\nodejs\node.exe C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\node-gyp\bin\node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libs
ass_library=
gyp info it worked if it ends with ok
gyp verb cli [
gyp verb cli   'C:\\Program Files\\nodejs\\node.exe',
gyp verb cli   'C:\\Users\\Rahul\\yantra-front\\cargo_frontend\\cargo-app\\node_modules\\node-gyp\\bin\\node-gyp.js',
gyp verb cli   'rebuild',
gyp verb cli   '--verbose',
gyp verb cli   '--libsass_ext=',
gyp verb cli   '--libsass_cflags=',
gyp verb cli   '--libsass_ldflags=',
gyp verb cli   '--libsass_library='
gyp verb cli ]
gyp info using node-gyp@3.8.0
gyp info using node@12.16.3 | win32 | x64
gyp verb command rebuild []
gyp verb command clean []
gyp verb clean removing "build" directory
gyp verb command configure []
gyp verb check python checking for Python executable "python2" in the PATH
gyp verb `which` failed Error: not found: python2
gyp verb `which` failed     at getNotFoundError (C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\which\which.js:13:12)
gyp verb `which` failed     at F (C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\which\which.js:68:19)
gyp verb `which` failed     at E (C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\which\which.js:80:29)
gyp verb `which` failed     at C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\which\which.js:89:16
gyp verb `which` failed     at C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\isexe\index.js:42:5
gyp verb `which` failed     at C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\isexe\windows.js:36:5
gyp verb `which` failed     at FSReqCallback.oncomplete (fs.js:167:21)
gyp verb `which` failed  python2 Error: not found: python2
gyp verb `which` failed     at getNotFoundError (C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\which\which.js:13:12)
gyp verb `which` failed     at F (C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\which\which.js:68:19)
gyp verb `which` failed     at E (C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\which\which.js:80:29)
gyp verb `which` failed     at C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\which\which.js:89:16
gyp verb `which` failed     at C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\isexe\index.js:42:5
gyp verb `which` failed     at C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\isexe\windows.js:36:5
gyp verb `which` failed     at FSReqCallback.oncomplete (fs.js:167:21) {
gyp verb `which` failed   code: 'ENOENT'
gyp verb `which` failed }
gyp verb check python checking for Python executable "python" in the PATH
gyp verb `which` succeeded python C:\Users\Rahul\AppData\Local\Programs\Python\Python37\python.EXE
gyp ERR! configure error
gyp ERR! stack Error: Command failed: C:\Users\Rahul\AppData\Local\Programs\Python\Python37\python.EXE -c import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack   File "<string>", line 1
gyp ERR! stack     import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack                                ^
gyp ERR! stack SyntaxError: invalid syntax
gyp ERR! stack
gyp ERR! stack     at ChildProcess.exithandler (child_process.js:303:12)
gyp ERR! stack     at ChildProcess.emit (events.js:310:20)
gyp ERR! stack     at maybeClose (internal/child_process.js:1021:16)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:286:5)
gyp ERR! System Windows_NT 10.0.18362
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\Rahul\\yantra-front\\cargo_frontend\\cargo-app\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cfl
ags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd C:\Users\Rahul\yantra-front\cargo_frontend\cargo-app\node_modules\node-sass
gyp ERR! node -v v12.16.3
gyp ERR! node-gyp -v v3.8.0

而我的路径中同时有 python 3 和 2

C:\Python27;C:\Python27\Tools\Scripts
C:\Users\Rahul\.windows-build-tools\python27\
C:\Users\Rahul\AppData\Local\Programs\Python\Python37\
C:\Users\Rahul\AppData\Local\Programs\Python\Python37\Scripts\
C:\Users\Rahul\AppData\Roaming\npm
C:\Users\Rahul\AppData\Local\Yarn\bin
C:\Users\Rahul\AppData\Local\Microsoft\WindowsApps
%USERPROFILE%\AppData\Local\Microsoft\WindowsApps

我无法运行该项目。请帮忙!!

包.json

{
  "name": "cargo-app",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@coreui/coreui": "^3.0.0",
    "@coreui/react": "^2.5.7",
    "@fortawesome/fontawesome-svg-core": "^1.2.28",
    "@fortawesome/free-solid-svg-icons": "^5.13.0",
    "@fortawesome/react-fontawesome": "^0.1.9",
    "@testing-library/jest-dom": "^4.2.4",
    "@testing-library/react": "^9.3.2",
    "@testing-library/user-event": "^7.1.2",
    "axios": "^0.19.2",
    "history": "^4.10.1",
    "node-sass": "^4.14.1",
    "react": "^16.13.1",
    "react-bootstrap-table-next": "^4.0.1",
    "react-dom": "^16.13.1",
    "react-redux": "^7.2.0",
    "react-router-dom": "^5.1.2",
    "react-scripts": "3.4.1",
    "react-toastify": "^6.0.0",
    "reactjs-localstorage": "^0.0.8",
    "reactstrap": "^8.4.1",
    "redux": "^4.0.5",
    "redux-thunk": "^2.3.0"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  }
}

Answer 1

此 Node 依赖项依赖于 Python 2，而它在您的计算机上找到的 Python 可执行文件是 Python 3。

您可以看到它尝试打印“%s.%s.%s”——这是 Python 2 语法，在 Python 3 中无效。

您的项目很可能依赖于旧版本的 node-sass，而后者又依赖于过时版本的 node-gyp。尝试在您的依赖项中指定更新版本的 node-sass。

作为替代方案，您也可以尝试使用 this ticket 中概述的解决方法，将以下内容添加到您的 package.json 中:

  "resolutions": {
    "node-sass/node-gyp": "^6.0.0"
  },

但是，最好先看看是否可以切换到更新版本的 node-sass。