运行 npm install brain.js 时出现奇怪的 npm 错误

Question

在尝试安装brain.js ，出现了一个奇怪的错误，我无法理解问题是什么以及 python 是从哪里进来的，因为这是通过npm安装一个库。 我在谷歌中没有找到类似的情况（我什至不明白如何谷歌这个）。

G:\firststep\BR>npm i brain.js

> gl@4.3.3 install G:\firststep\BR\node_modules\gl
> prebuild-install || node-gyp rebuild

prebuild-install WARN install No prebuilt binaries found (target=10.14.2 runtime=node arch=x64 libc= platform=win32)

G:\firststep\BR\node_modules\gl>if not defined npm_config_node_gyp (node "C:\Users\rafae\AppData\Roaming\npm\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild )  else (node "C:\Users\rafae\AppData\Roaming
\npm\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js" rebuild )
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 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 2.7.
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 (C:\Users\rafae\AppData\Roaming\npm\node_modules\npm\node_modules\node-gyp\lib\find-python.js:303:47)
gyp ERR! stack     at PythonFinder.runChecks (C:\Users\rafae\AppData\Roaming\npm\node_modules\npm\node_modules\node-gyp\lib\find-python.js:132:21)
gyp ERR! stack     at PythonFinder.<anonymous> (C:\Users\rafae\AppData\Roaming\npm\node_modules\npm\node_modules\node-gyp\lib\find-python.js:221:16)
gyp ERR! stack     at PythonFinder.execFileCallback (C:\Users\rafae\AppData\Roaming\npm\node_modules\npm\node_modules\node-gyp\lib\find-python.js:267:16)
gyp ERR! stack     at exithandler (child_process.js:301:5)
gyp ERR! stack     at ChildProcess.errorhandler (child_process.js:313:5)
gyp ERR! stack     at ChildProcess.emit (events.js:182:13)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:238:12)
gyp ERR! stack     at onErrorNT (internal/child_process.js:407:16)
gyp ERR! stack     at process._tickCallback (internal/process/next_tick.js:63:19)
gyp ERR! System Windows_NT 10.0.17763
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\rafae\\AppData\\Roaming\\npm\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild"
gyp ERR! cwd G:\firststep\BR\node_modules\gl
gyp ERR! node -v v10.14.2
gyp ERR! node-gyp -v v5.0.3
gyp ERR! not ok
npm WARN enoent ENOENT: no such file or directory, open 'G:\firststep\BR\package.json'
npm WARN BR No description
npm WARN BR No repository field.
npm WARN BR No README data
npm WARN BR No license field.

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! gl@4.3.3 install: `prebuild-install || node-gyp rebuild`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the gl@4.3.3 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!     C:\Users\rafae\AppData\Roaming\npm-cache\_logs\2019-08-14T18_48_29_640Z-debug.log

在brain.js的文档中没有提到这个问题。 一切都很简单 - 运行npm install brain.js就是这样。

更新 16.08.2019

该指令标记为选项 2 帮助我https://github.com/nodejs/node-gyp#on-windows

Answer 1

确保为安装的Python设置了Path和Env变量。 另外，我在这里发现了类似的东西 ..希望对您有所帮助！！

Answer 2

使用-- npm install brainjs --without dot。

Answer 3

而不是npm install brain.js您应该使用npm install brain