无法安装 npm gulp-sass --save-dev

Question

我是 Node.js 的新手，刚开始学习，我需要安装 gulp-sass，但每次尝试时都会出现错误。

我已经尝试过删除 node_modules 并重新安装 gulp，清理缓存。如果有人知道安装出了什么问题，我将不胜感激，我会继续努力解决。

npm i gulp-sass --save-dev 

npm ERR! code 1
npm ERR! path C:\Users\jona0\FestivalMusica_inicio\node_modules\gulp-sass\node_modules\node-sass
npm ERR! command failed
npm ERR! command C:\WINDOWS\system32\cmd.exe /d /s /c node scripts/build.js
npm ERR! Building: C:\Program Files\nodejs\node.exe C:\Users\jona0\FestivalMusica_inicio\node_modules\gulp-sass\node_modules\node-gyp\bin\node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library=
npm ERR! gyp info it worked if it ends with ok
npm ERR! gyp verb cli [
npm ERR! gyp verb cli   'C:\\Program Files\\nodejs\\node.exe',
npm ERR! gyp verb cli   'C:\\Users\\jona0\\FestivalMusica_inicio\\node_modules\\gulp-sass\\node_modules\\node-gyp\\bin\\node-gyp.js',
npm ERR! gyp verb cli   'rebuild',
npm ERR! gyp verb cli   '--verbose',
npm ERR! gyp verb cli   '--libsass_ext=',
npm ERR! gyp verb cli   '--libsass_cflags=',
npm ERR! gyp verb cli   '--libsass_ldflags=',
npm ERR! gyp verb cli   '--libsass_library='
npm ERR! gyp verb cli ]
npm ERR! gyp info using node-gyp@3.8.0
npm ERR! gyp info using node@15.7.0 | win32 | x64
npm ERR! gyp verb command rebuild []
npm ERR! gyp verb command clean []
npm ERR! gyp verb clean removing "build" directory
npm ERR! gyp verb command configure []
npm ERR! gyp verb check python checking for Python executable "python2" in the PATH
npm ERR! gyp verb `which` failed Error: not found: python2
npm ERR! gyp verb `which` failed     at getNotFoundError (C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:13:12)
npm ERR! gyp verb `which` failed     at F (C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:68:19)
npm ERR! gyp verb `which` failed     at E (C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:80:29)
npm ERR! gyp verb `which` failed     at C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:89:16
npm ERR! gyp verb `which` failed     at C:\Users\jona0\FestivalMusica_inicio\node_modules\isexe\index.js:42:5
npm ERR! gyp verb `which` failed     at C:\Users\jona0\FestivalMusica_inicio\node_modules\isexe\windows.js:36:5
npm ERR! gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:194:21)
npm ERR! gyp verb `which` failed  python2 Error: not found: python2
npm ERR! gyp verb `which` failed     at getNotFoundError (C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:13:12)
npm ERR! gyp verb `which` failed     at F (C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:68:19)
npm ERR! gyp verb `which` failed     at E (C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:80:29)
npm ERR! gyp verb `which` failed     at C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:89:16
npm ERR! gyp verb `which` failed     at C:\Users\jona0\FestivalMusica_inicio\node_modules\isexe\index.js:42:5
npm ERR! gyp verb `which` failed     at C:\Users\jona0\FestivalMusica_inicio\node_modules\isexe\windows.js:36:5
npm ERR! gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:194:21) {
npm ERR! gyp verb `which` failed   code: 'ENOENT'
npm ERR! gyp verb `which` failed }
npm ERR! gyp verb check python checking for Python executable "python" in the PATH
npm ERR! gyp verb `which` failed Error: not found: python
npm ERR! gyp verb `which` failed     at getNotFoundError (C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:13:12)
npm ERR! gyp verb `which` failed     at F (C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:68:19)
npm ERR! gyp verb `which` failed     at E (C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:80:29)
npm ERR! gyp verb `which` failed     at C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:89:16
npm ERR! gyp verb `which` failed     at C:\Users\jona0\FestivalMusica_inicio\node_modules\isexe\index.js:42:5
npm ERR! gyp verb `which` failed     at C:\Users\jona0\FestivalMusica_inicio\node_modules\isexe\windows.js:36:5
npm ERR! gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:194:21)
npm ERR! gyp verb `which` failed  python Error: not found: python
npm ERR! gyp verb `which` failed     at getNotFoundError (C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:13:12)
npm ERR! gyp verb `which` failed     at F (C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:68:19)
npm ERR! gyp verb `which` failed     at E (C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:80:29)
npm ERR! gyp verb `which` failed     at C:\Users\jona0\FestivalMusica_inicio\node_modules\which\which.js:89:16
npm ERR! gyp verb `which` failed     at C:\Users\jona0\FestivalMusica_inicio\node_modules\isexe\index.js:42:5
npm ERR! gyp verb `which` failed     at C:\Users\jona0\FestivalMusica_inicio\node_modules\isexe\windows.js:36:5
npm ERR! gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:194:21) {
npm ERR! gyp verb `which` failed   code: 'ENOENT'
npm ERR! gyp verb `which` failed }
npm ERR! gyp verb could not find "python". checking python launcher
npm ERR! gyp verb could not find "python". guessing location
npm ERR! gyp verb ensuring that file exists: C:\Python27\python.exe
npm ERR! gyp ERR! configure error
npm ERR! gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
npm ERR! gyp ERR! stack     at PythonFinder.failNoPython (C:\Users\jona0\FestivalMusica_inicio\node_modules\gulp-sass\node_modules\node-gyp\lib\configure.js:484:19)   
npm ERR! gyp ERR! stack     at PythonFinder.<anonymous> (C:\Users\jona0\FestivalMusica_inicio\node_modules\gulp-sass\node_modules\node-gyp\lib\configure.js:509:16)    
npm ERR! gyp ERR! stack     at callback (C:\Users\jona0\FestivalMusica_inicio\node_modules\graceful-fs\polyfills.js:295:20)
npm ERR! gyp ERR! stack     at FSReqCallback.oncomplete (node:fs:194:21)
npm ERR! gyp ERR! System Windows_NT 10.0.19042
npm ERR! gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\jona0\\FestivalMusica_inicio\\node_modules\\gulp-sass\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
npm ERR! gyp ERR! cwd C:\Users\jona0\FestivalMusica_inicio\node_modules\gulp-sass\node_modules\node-sass
npm ERR! gyp ERR! node -v v15.7.0
npm ERR! gyp ERR! node-gyp -v v3.8.0
npm ERR! gyp ERR! not ok
npm ERR! Build failed with error code: 1

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\jona0\AppData\Local\npm-cache\_logs\2021-02-03T01_38_54_026Z-debug.log

Answer 1

您必须将 python 添加到您的 PATH 变量中。您可以做的一件事是现在编辑您的 Path 变量并添加

;%PYTHON%;

你的变量 PYTHON 应该指向你的 python 安装的根目录。