在我的项目中，我没有使用任何PYTHON，但是却得到了gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
正在使用node_modules安装npm i --save。
最近，我更新了项目，因此升级了node，npm和yarn版本。
以下版本：
node: 12.4.0
npm: 6.9.0
yarn: 1.16.0
@angular/cli: 8.0.2
正在安装node_modules时出现错误：
> node-sass@4.10.0 postinstall
D:\kishore\Git_Works\jupiter\node_modules\node-sass
> node scripts/build.js
Building: C:\Program Files\nodejs\node.exe
D:\kishore\Git_Works\jupiter\node_modules\node-gyp\bin\node-gyp.js rebuild -
-verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --
libsass_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 'D:\\kishore\\Git_Works\\jupiter\\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@12.4.0 | 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
(D:\kishore\Git_Works\jupiter\node_modules\which\which.js:13:12)
gyp verb `which` failed at F (D:\kishore\Git_Works\jupiter\node_modules\which\which.js:68:19)
gyp verb `which` failed at E (D:\kishore\Git_Works\jupiter\node_modules\which\which.js:80:29)
gyp verb `which` failed at D:\kishore\Git_Works\jupiter\node_modules\which\which.js:89:16
gyp verb `which` failed at D:\kishore\Git_Works\jupiter\node_modules\isexe\index.js:42:5
gyp verb `which` failed at D:\kishore\Git_Works\jupiter\node_modules\isexe\windows.js:36:5
gyp verb `which` failed at FSReqCallback.oncomplete (fs.js:165:21)
gyp verb `which` failed python2 Error: not found: python2
gyp verb `which` failed at getNotFoundError (D:\kishore\Git_Works\jupiter\node_modules\which\which.js:13:12)
gyp verb `which` failed at F (D:\kishore\Git_Works\jupiter\node_modules\which\which.js:68:19)
gyp verb `which` failed at E (D:\kishore\Git_Works\jupiter\node_modules\which\which.js:80:29)
gyp verb `which` failed at D:\kishore\Git_Works\jupiter\node_modules\which\which.js:89:16
gyp verb `which` failed at D:\kishore\Git_Works\jupiter\node_modules\isexe\index.js:42:5
gyp verb `which` failed at D:\kishore\Git_Works\jupiter\node_modules\isexe\windows.js:36:5
gyp verb `which` failed at FSReqCallback.oncomplete (fs.js:165:21) {
gyp verb `which` failed stack: 'Error: not found: python2\n at getNotFoundError ' +
gyp verb `which` failed '(D:\\kishore\\Git_Works\\jupiter\\node_modules\\which\\which.js:13:12)\n' +
gyp verb `which` failed ' at F ' +
gyp verb `which` failed '(D:\\kishore\\Git_Works\\jupiter\\node_modules\\which\\which.js:68:19)\n' +
gyp verb `which` failed ' at E ' +
gyp verb `which` failed '(D:\\kishore\\Git_Works\\jupiter\\node_modules\\which\\which.js:80:29)\n' +
gyp verb `which` failed ' at ' +
gyp verb `which` failed 'D:\\kishore\\Git_Works\\jupiter\\node_modules\\which\\which.js:89:16\n' +
gyp verb `which` failed ' at ' +
gyp verb `which` failed 'D:\\kishore\\Git_Works\\jupiter\\node_modules\\isexe\\index.js:42:5\n ' +
gyp verb `which` failed ' at ' +
gyp verb `which` failed 'D:\\kishore\\Git_Works\\jupiter\\node_modules\\isexe\\windows.js:36:5\n' +
gyp verb `which` failed ' at FSReqCallback.oncomplete (fs.js:165:21)',
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` failed Error: not found: python
gyp verb `which` failed at getNotFoundError (D:\kishore\Git_Works\jupiter\node_modules\which\which.js:13:12)
gyp verb `which` failed at F (D:\kishore\Git_Works\jupiter\node_modules\which\which.js:68:19)
gyp verb `which` failed at E (D:\kishore\Git_Works\jupiter\node_modules\which\which.js:80:29)
gyp verb `which` failed at D:\kishore\Git_Works\jupiter\node_modules\which\which.js:89:16
gyp verb `which` failed at D:\kishore\Git_Works\jupiter\node_modules\isexe\index.js:42:5
gyp verb `which` failed at D:\kishore\Git_Works\jupiter\node_modules\isexe\windows.js:36:5
gyp verb `which` failed at FSReqCallback.oncomplete (fs.js:165:21)
gyp verb `which` failed python Error: not found: python
gyp verb `which` failed at getNotFoundError (D:\kishore\Git_Works\jupiter\node_modules\which\which.js:13:12)
gyp verb `which` failed at F (D:\kishore\Git_Works\jupiter\node_modules\which\which.js:68:19)
gyp verb `which` failed at E (D:\kishore\Git_Works\jupiter\node_modules\which\which.js:80:29)
gyp verb `which` failed at D:\kishore\Git_Works\jupiter\node_modules\which\which.js:89:16
gyp verb `which` failed at D:\kishore\Git_Works\jupiter\node_modules\isexe\index.js:42:5
gyp verb `which` failed at D:\kishore\Git_Works\jupiter\node_modules\isexe\windows.js:36:5
gyp verb `which` failed at FSReqCallback.oncomplete (fs.js:165:21) {
gyp verb `which` failed stack: 'Error: not found: python\n at getNotFoundError ' +
gyp verb `which` failed '(D:\\kishore\\Git_Works\\jupiter\\node_modules\\which\\which.js:13:12)\n' +
gyp verb `which` failed ' at F ' +
gyp verb `which` failed '(D:\\kishore\\Git_Works\\jupiter\\node_modules\\which\\which.js:68:19)\n' +
gyp verb `which` failed ' at E ' +
gyp verb `which` failed '(D:\\kishore\\Git_Works\\jupiter\\node_modules\\which\\which.js:80:29)\n' +
gyp verb `which` failed ' at ' +
gyp verb `which` failed 'D:\\kishore\\Git_Works\\jupiter\\node_modules\\which\\which.js:89:16\n' +
gyp verb `which` failed ' at ' +
gyp verb `which` failed 'D:\\kishore\\Git_Works\\jupiter\\node_modules\\isexe\\index.js:42:5\n ' +
gyp verb `which` failed ' at ' +
gyp verb `which` failed 'D:\\kishore\\Git_Works\\jupiter\\node_modules\\isexe\\windows.js:36:5\n' +
gyp verb `which` failed ' at FSReqCallback.oncomplete (fs.js:165:21)',
gyp verb `which` failed code: 'ENOENT'
gyp verb `which` failed }
gyp verb could not find "python". checking python launcher
gyp verb could not find "python". guessing location
gyp verb ensuring that file exists: C:\Python27\python.exe
gyp ERR! configure error
gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
gyp ERR! stack at PythonFinder.failNoPython (D:\kishore\Git_Works\jupiter\node_modules\node-gyp\lib\configure.js:484:19)
gyp ERR! stack at PythonFinder.<anonymous> (D:\kishore\Git_Works\jupiter\node_modules\node-gyp\lib\configure.js:509:16)
gyp ERR! stack at D:\kishore\Git_Works\jupiter\node_modules\graceful-fs\polyfills.js:282:31
gyp ERR! stack at FSReqCallback.oncomplete (fs.js:165:21)
gyp ERR! System Windows_NT 10.0.17134
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "D:\\kishore\\Git_Works\\jupiter\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd D:\kishore\Git_Works\jupiter\node_modules\node-sass
gyp ERR! node -v v12.4.0
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok
Build failed with error code: 1
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.9 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.9: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! node-sass@4.10.0 postinstall: `node scripts/build.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the node-sass@4.10.0 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\IEUI18-1\AppData\Roaming\npm-cache\_logs\2019-06-21T10_25_49_347Z-debug.log
D:\kishore\Git_Works\jupiter>
有人可以帮我解决这个问题吗？
答案 0 :(得分：0)
以具有 admin 权限的命令提示符在命令提示符下执行以下命令
npm --add-python-to-path='true' --debug install --global windows-build-tools
npm install --global node-gyp
执行命令后，删除package-lock.json和节点模块，然后再次执行npm安装。