命令列報錯如下

E:\vue-admin\node_modules\fibers>if not defined npm_config_node_gyp (node "D:\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild --releas
e )  else (node "D:\nodejs\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js" rebuild --release )

gyp ERR! find Python
gyp ERR! find Python Python is not set from command line or npm configuration
gyp ERR! find Python Python is not set from environment variable PYTHON
gyp ERR! find Python checking if "python" can be used
gyp ERR! find Python - "python" is not in PATH or produced an error
gyp ERR! find Python checking if "python2" can be used
gyp ERR! find Python - "python2" is not in PATH or produced an error
gyp ERR! find Python checking if "python3" can be used
gyp ERR! find Python - "python3" is not in PATH or produced an error
gyp ERR! find Python checking if the py launcher can be used to find Python 2
gyp ERR! find Python - "py.exe" is not in PATH or produced an error
gyp ERR! find Python checking if Python is C:\Python27\python.exe
gyp ERR! find Python - "C:\Python27\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Python37\python.exe
gyp ERR! find Python - "C:\Python37\python.exe" could not be run
gyp ERR! find Python
gyp ERR! find Python **********************************************************
gyp ERR! find Python You need to install the latest version of Python.
gyp ERR! find Python Node-gyp should be able to find and use Python. If not,
gyp ERR! find Python you can try one of the following options:
gyp ERR! find Python - Use the switch --python="C:\Path\To\python.exe"
gyp ERR! find Python   (accepted by both node-gyp and npm)
gyp ERR! find Python - Set the environment variable PYTHON
gyp ERR! find Python - Set the npm configuration variable python:
gyp ERR! find Python   npm config set python "C:\Path\To\python.exe"
gyp ERR! find Python For more information consult the documentation at:
gyp ERR! find Python https://github.com/nodejs/node-gyp#installation
gyp ERR! find Python **********************************************************
gyp ERR! find Python
gyp ERR! configure error
gyp ERR! stack Error: Could not find any Python installation to use
gyp ERR! stack     at PythonFinder.fail (D:\nodejs\node_modules\npm\node_modules\node-gyp\lib\find-python.js:307:47)
gyp ERR! stack     at PythonFinder.runChecks (D:\nodejs\node_modules\npm\node_modules\node-gyp\lib\find-python.js:136:21)
gyp ERR! stack     at PythonFinder.<anonymous> (D:\nodejs\node_modules\npm\node_modules\node-gyp\lib\find-python.js:225:16)
gyp ERR! stack     at PythonFinder.execFileCallback (D:\nodejs\node_modules\npm\node_modules\node-gyp\lib\find-python.js:271:16)
gyp ERR! stack     at exithandler (child_process.js:315:5)
gyp ERR! stack     at ChildProcess.errorhandler (child_process.js:327:5)
gyp ERR! stack     at ChildProcess.emit (events.js:314:20)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:274:12)
gyp ERR! stack     at onErrorNT (internal/child_process.js:468:16)
gyp ERR! stack     at processTicksAndRejections (internal/process/task_queues.js:80:21)
gyp ERR! System Windows_NT 10.0.18363
gyp ERR! command "D:\\nodejs\\node.exe" "D:\\nodejs\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--release"
gyp ERR! cwd E:\lx-fr-admin-ui\node_modules\fibers
gyp ERR! node -v v14.5.0
gyp ERR! node-gyp -v v5.1.0
gyp ERR! not ok
node-gyp exited with code: 1
Please make sure you are using a supported platform and node version. If you
would like to compile fibers on this machine please make sure you have setup your
build environment--
Windows + OS X instructions here: https://github.com/nodejs/node-gyp
Ubuntu users please run: `sudo apt-get install g++ build-essential`
RHEL users please run: `yum install gcc-c++` and `yum groupinstall 'Development Tools'`
Alpine users please run: `sudo apk add python make g++`
'nodejs' 不是內部或外部命令，也不是可執行的程式
或批處理檔案。


npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] install: `node build.js || nodejs build.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] install 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!     D:\nodejs\node_cache\_logs\2020-07-17T00_46_32_338Z-debug.log
 

解決方案

1.安裝node-gyp

npm install -g node-gyp

2.安裝python

推薦安裝2.7版本（自行選擇32位或者64位安裝）：
https://www.python.org/downlo...

如果官網下載速度很慢，可以使用另一種安裝方式

以管理員身份執行

npm install --global --production windows-build-tools

安裝完成後會在C:WindowsSystem32裡找到一個名為.windows-build-tools的資料夾

可以直接按照這個目錄配置環境，為了方便，我選擇將python27重灌到D盤，點選python-2.7.15.amd64.msi選擇

移除之後再點選setup程式，這次可以直接安裝

安裝成功後，在命令列介面輸入python測試是否安裝成功

3.配置環境變數

環境變數->系統環境變數->Path

4.npm 配置

npm config set python "D:\Python27\python.exe"
npm config set node_gyp "D:\nodejs\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js"

配置成功後，再次執行npm install就不會報錯了

轉自：https://segmentfault.com/a/1190000023271417

感謝alminsa大大，記錄一下。