成功解决gyp verb ensuring that file exists: C:\Python27\python.exe gyp ERR! configure error gyp ERR! sta

成功解决gyp verb ensuring that file exists: C:\Python27\python.exe gyp ERR! configure error gyp ERR! sta

解决问题

gyp verb ensuring that file exists: C:\Python27\python.exe
gyp ERR! configure error
gyp ERR! stack Error: Can't find Python executable "F:\Program Files\Python\Python36\python.EXE", you can set the PYTHON env variable.
gyp ERR! stack     at PythonFinder.failNoPython (G:\USST\Jason niu tutor\FXTrafficSystem-web\node_modules\node-gyp\lib\configure.js:483:19)
gyp ERR! stack     at PythonFinder.<anonymous> (G:\USST\Jason niu tutor\FXTrafficSystem-web\node_modules\node-gyp\lib\configure.js:508:16)
gyp ERR! stack     at G:\USST\Jason niu tutor\FXTrafficSystem-web\node_modules\graceful-fs\polyfills.js:284:29
gyp ERR! stack     at FSReqWrap.oncomplete (fs.js:158:21)
gyp ERR! System Windows_NT 10.0.16299
gyp ERR! command "F:\\Program Files (x86)\\node-v10.5.0\\node.exe" "G:\\USST\\Jason niu tutor\\FXTrafficSystem-web\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd G:\USST\Jason niu tutor\FXTrafficSystem-web\node_modules\node-sass
gyp ERR! node -v v10.5.0
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok
Build failed with error code: 1
npm WARN sass-loader@6.0.6 requires a peer of webpack@^2.0.0 || >= 3.0.0-rc.0 || ^3.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN The package express is included as both a dev and production dependency.
npm WARN The package jquery is included as both a dev and production dependency.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.1.2 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! node-sass@4.5.3 postinstall: `node scripts/build.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the node-sass@4.5.3 postinstall 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\99386\AppData\Roaming\npm-cache\_logs\2018-07-16T13_26_26_530Z-debug.log

解决思路

确保文件存在的gyp动词：c:\python27\python.exe gyp err！配置错误Gyp错误！

解决方法

切记，因为我电脑上已经安装由python3.6了。环境要求python2的版本，具体为什么不用python3，我特么也纳闷，也不太清为什么必须是python2，python3版本就是不行，所以，还是重新安装python2吧……

两种方法搞定！
T1、npm install --global --production windows-build-tools
T2、自行下载
npm install --python=python2.7     #先下载
npm config set python python2.7   #再设置环境

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