使用npm安装node-sass时，或者安装需要python2的依赖时，会报出以下错误。 ``` 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 (E:\codes\proviet\client-nuxt\node_modules\which\which.js:13:12) gyp verb `which` failed at F (E:\codes\proviet\client-nuxt\node_modules\which\which.js:68:19) gyp verb `which` failed at E (E:\codes\proviet\client-nuxt\node_modules\which\which.js:80:29) gyp verb `which` failed at E:\codes\proviet\client-nuxt\node_modules\which\which.js:89:16 gyp verb `which` failed at E:\codes\proviet\client-nuxt\node_modules\isexe\index.js:42:5 gyp verb `which` failed at E:\codes\proviet\client-nuxt\node_modules\isexe\windows.js:36:5 gyp verb `which` failed at FSReqCallback.oncomplete (fs.js:183:21) gyp verb `which` failed python2 Error: not found: python2 gyp verb `which` failed at getNotFoundError (E:\codes\proviet\client-nuxt\node_modules\which\which.js:13:12) gyp verb `which` failed at E:\codes\proviet\client-nuxt\node_modules\isexe\index.js:42:5 gyp verb `which` failed at E:\codes\proviet\client-nuxt\node_modules\isexe\windows.js:36:5 gyp verb `which` failed at FSReqCallback.oncomplete (fs.js:183:21) { 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:\Program Files\python\python.EXE gyp ERR! configure error gyp ERR! stack Error: Command failed: C:\Program Files\python\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:308:12) gyp ERR! stack at ChildProcess.emit (events.js:315:20) gyp ERR! stack at maybeClose (internal/child_process.js:1048:16) gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:288:5) gyp ERR! System Windows_NT 10.0.19042 gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "E:\\codes\\proviet\\client-nuxt\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library=" gyp ERR! cwd E:\codes\proviet\client-nuxt\node_modules\node-sass gyp ERR! node -v v14.16.0 ``` ### 解决方案一: #### 1. 安装python2 可以用npm命令安装 ```shell npm install -g node-gyp ``` 也可以自行下载安装 [Python 2.7](https://www.python.org/downloads/ "Python 2.7") #### 2. 安装完毕后配置环境变量 ```shell npm config set python python2.7 ``` #### 3.再配置一下版本 ```shell npm config set msvs_version 2017 ``` 修改完毕，之后就可以正常安装node-sass了，如果还不行就使用淘宝镜像。 ### 解决方案二(推荐) node-sass实在太坑了，之前遇到安装失败使用方法一完美解决。最近又一次遇到了，但是方法一又无效了。于是我又在网上找到另一个方法，就是用dart-sass来替换node-sass。 正常的替换也会出问题，还要改配置。使用以下方法便可以解决 yarn安装的: ```shell yarn add node-sass@yarn:dart-sass -D ``` npm安装的: ```shell npm install node-sass@npm:dart-sass -D ```