npm ERR! Failed at the node-sass@4.5.2 postinstall script. npm ERR! This is probably not a problem

本文链接：https://blog.youkuaiyun.com/luckyone1111/article/details/81070290

在尝试安装node-sass@4.5.2时遇到错误，问题源于其与node v8版本的不兼容。通过更新node-sass到4.5.3版本，并修改package.json文件，然后运行npm install和npm run dev，成功解决了问题。

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$ npm install

> node-sass@4.5.2 install F:\work\jnyy\server-no-dubbo\littlec-eecweb\node_modul                                                                                                                                  es\node-sass
> node scripts/install.js

Downloading binary from https://github.com/sass/node-sass/releases/download/v4.5                                                                                                                                  .2/win32-x64-57_binding.node
Cannot download "https://github.com/sass/node-sass/releases/download/v4.5.2/win3                                                                                                                                  2-x64-57_binding.node":

HTTP error 404 Not Found

Hint: If github.com is not accessible in your location
      try setting a proxy via HTTP_PROXY, e.g.

      export HTTP_PROXY=http://example.com:1234

or configure npm proxy via

      npm config set proxy http://example.com:8080

> node-sass@4.5.2 postinstall F:\work\jnyy\server-no-dubbo\littlec-eecweb\node_m                                                                                                                                  odules\node-sass
> node scripts/build.js

Building: F:\softinstall\nodejs\node.exe F:\work\jnyy\server-no-dubbo\littlec-ee                                                                                                                                  cweb\node_modules\node-gyp\bin\node-gyp.js rebuild --verbose --libsass_ext= --li                                                                                                                                  bsass_cflags= --libsass_ldflags= --libsass_library=
gyp info it worked if it ends with ok
gyp verb cli [ 'F:\\softinstall\\nodejs\\node.exe',
gyp verb cli   'F:\\work\\jnyy\\server-no-dubbo\\littlec-eecweb\\node_modules\\n                                                                                                                                  ode-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 info using node-gyp@3.6.2
gyp info using node@8.11.3 | 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 (F:\work\jnyy\server-no-dubbo\li                                                                                                                                  ttlec-eecweb\node_modules\which\which.js:13:12)
gyp verb `which` failed     at F (F:\work\jnyy\server-no-dubbo\littlec-eecweb\no                                                                                                                                  de_modules\which\which.js:68:19)
gyp verb `which` failed     at E (F:\work\jnyy\server-no-dubbo\littlec-eecweb\no                                                                                                                                  de_modules\which\which.js:80:29)
gyp verb `which` failed     at F:\work\jnyy\server-no-dubbo\littlec-eecweb\node_                                                                                                                                  modules\which\which.js:89:16
gyp verb `which` failed     at F:\work\jnyy\server-no-dubbo\littlec-eecweb\node_                                                                                                                                  modules\isexe\index.js:42:5
gyp verb `which` failed     at F:\work\jnyy\server-no-dubbo\littlec-eecweb\node_                                                                                                                                  modules\isexe\windows.js:36:5
gyp verb `which` failed     at FSReqWrap.oncomplete (fs.js:152:21)
gyp verb `which` failed  python2 { Error: not found: python2
gyp verb `which` failed     at getNotFoundError (F:\work\jnyy\server-no-dubbo\li                                                                                                                                  ttlec-eecweb\node_modules\which\which.js:13:12)
gyp verb `which` failed     at F (F:\work\jnyy\server-no-dubbo\littlec-eecweb\no                                                                                                                                  de_modules\which\which.js:68:19)
gyp verb `which` failed     at E (F:\work\jnyy\server-no-dubbo\littlec-eecweb\no