我正在进入一个Node.js代码库,这需要我通过NPM下载一些依赖项,即jQuery。

在尝试运行npm install jquery时,我一直得到这个错误:

Your environment has been set up for using Node.js 0.8.21 (x64) and NPM

C:\Users\Matt Cashatt>npm install jquery
npm http GET https://registry.npmjs.org/jquery
npm http 304 https://registry.npmjs.org/jquery
npm http GET https://registry.npmjs.org/jsdom
npm http GET https://registry.npmjs.org/xmlhttprequest
npm http GET https://registry.npmjs.org/htmlparser/1.7.6
npm http GET https://registry.npmjs.org/location/0.0.1
npm http GET https://registry.npmjs.org/navigator
npm http GET https://registry.npmjs.org/contextify
npm http 304 https://registry.npmjs.org/htmlparser/1.7.6
npm http 304 https://registry.npmjs.org/xmlhttprequest
npm http 304 https://registry.npmjs.org/location/0.0.1
npm http 304 https://registry.npmjs.org/navigator
npm http 304 https://registry.npmjs.org/jsdom
npm http 304 https://registry.npmjs.org/contextify
npm http GET https://registry.npmjs.org/bindings
npm http GET https://registry.npmjs.org/cssom
npm http GET https://registry.npmjs.org/cssstyle
npm http GET https://registry.npmjs.org/request
npm http 304 https://registry.npmjs.org/bindings

> contextify@0.1.4 install C:\Users\Matt Cashatt\node_modules\jquery\node_module
s\contextify
> node-gyp rebuild


C:\Users\Matt Cashatt\node_modules\jquery\node_modules\contextify>node "C:\Progr
am Files\nodejs\node_modules\npm\bin\node-gyp-bin\\..\..\node_modules\node-gyp\b
in\node-gyp.js" rebuild
npm http 304 https://registry.npmjs.org/cssstyle
npm http 304 https://registry.npmjs.org/cssom
npm http 304 https://registry.npmjs.org/request
gyp ERR! configure error
gyp ERR! stack Error: Can't find Python executable "python", you can set the PYT
HON env variable.
gyp ERR! stack     at failNoPython (C:\Program Files\nodejs\node_modules\npm\nod
e_modules\node-gyp\lib\configure.js:113:14)
gyp ERR! stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\node
-gyp\lib\configure.js:82:11
gyp ERR! stack     at Object.oncomplete (fs.js:297:15)
gyp ERR! System Windows_NT 6.1.7601
gyp ERR! command "node" "C:\\Program Files\\nodejs\\node_modules\\npm\\node_modu
les\\node-gyp\\bin\\node-gyp.js" "rebuild"
gyp ERR! cwd C:\Users\Matt Cashatt\node_modules\jquery\node_modules\contextify
gyp ERR! node -v v0.8.21
gyp ERR! node-gyp -v v0.8.4
gyp ERR! not ok
npm ERR! error rolling back Error: ENOTEMPTY, rmdir 'C:\Users\Matt Cashatt\node_
modules\jquery\node_modules\jsdom\node_modules\request\tests'
npm ERR! error rolling back  jquery@1.8.3 { [Error: ENOTEMPTY, rmdir 'C:\Users\M
att Cashatt\node_modules\jquery\node_modules\jsdom\node_modules\request\tests']
npm ERR! error rolling back   errno: 53,
npm ERR! error rolling back   code: 'ENOTEMPTY',
npm ERR! error rolling back   path: 'C:\\Users\\Matt Cashatt\\node_modules\\jque
ry\\node_modules\\jsdom\\node_modules\\request\\tests' }
npm ERR! contextify@0.1.4 install: `node-gyp rebuild`
npm ERR! `cmd "/c" "node-gyp rebuild"` failed with 1
npm ERR!
npm ERR! Failed at the contextify@0.1.4 install script.
npm ERR! This is most likely a problem with the contextify package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node-gyp rebuild
npm ERR! You can get their info via:
npm ERR!     npm owner ls contextify
npm ERR! There is likely additional logging output above.

npm ERR! System Windows_NT 6.1.7601
npm ERR! command "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nod
ejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "jquery"
npm ERR! cwd C:\Users\Matt Cashatt
npm ERR! node -v v0.8.21
npm ERR! npm -v 1.2.11
npm ERR! code ELIFECYCLE
npm ERR! Error: ENOENT, lstat 'C:\Users\Matt Cashatt\node_modules\jquery\node_mo
dules\jsdom\node_modules\request\tests\test-pipes.js'
npm ERR! If you need help, you may report this log at:
npm ERR!     <http://github.com/isaacs/npm/issues>
npm ERR! or email it to:
npm ERR!     <npm-@googlegroups.com>

npm ERR! System Windows_NT 6.1.7601
npm ERR! command "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nod
ejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "jquery"
npm ERR! cwd C:\Users\Matt Cashatt
npm ERR! node -v v0.8.21
npm ERR! npm -v 1.2.11
npm ERR! path C:\Users\Matt Cashatt\node_modules\jquery\node_modules\jsdom\node_
modules\request\tests\test-pipes.js
npm ERR! fstream_path C:\Users\Matt Cashatt\node_modules\jquery\node_modules\jsd
om\node_modules\request\tests\test-pipes.js
npm ERR! fstream_type File
npm ERR! fstream_class FileWriter
npm ERR! code ENOENT
npm ERR! errno 34
npm ERR! fstream_stack C:\Program Files\nodejs\node_modules\npm\node_modules\fst
ream\lib\writer.js:284:26
npm ERR! fstream_stack Object.oncomplete (fs.js:297:15)
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR!     C:\Users\Matt Cashatt\npm-debug.log
npm ERR! not ok code 0

C:\Users\Matt Cashatt>

看起来失败是由于缺少Python安装。好吧,我已经安装了Python,设置了变量,然后重新启动,仍然出现错误。

你知道我错过了什么吗?


当前回答

我的问题的答案很简单。

我在安装Python时打开了一个Windows命令窗口。

安装Python后,我试图从该窗口启动Python。

解决办法对我来说很简单。

当我关闭命令窗口并打开一个新的命令窗口时,问题就消失了。

我必须打开一个新的命令窗口,以便path环境变量将包含Python的路径。

其他回答

其中一个和/或多个应该有助于:

Add C:\Python27\ to your PATH variable (considering you have Python installed in this directory) How to set PATH env variable: http://www.computerhope.com/issues/ch000549.htm Restart your console and/or Windows after setting variable. In the same section as above ("Environment Variables"), add new variable with name PYTHON and value C:\Python27\python.exe Restart your console and/or Windows after setting variable. Open Windows command line (cmd) in Admin mode. Change directory to your Python installation path: cd C:\Python27 Make symlink needed for some installations: mklink python2.7.exe python.exe

请注意,您应该有Python 2。x,不是3。X,运行基于node-gyp的安装!

下面的文本说的是Unix,但Windows版本也需要Python 2.x:

You can install with npm:

$ npm install -g node-gyp
You will also need to install:

On Unix:
python (v2.7 recommended, v3.x.x is not supported)
make
A proper C/C++ compiler toolchain, like GCC

这篇文章也可能有所帮助:https://github.com/nodejs/node-gyp#installation

你的问题是你没有设置环境变量。

错误明确地说:

gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.

在你的评论中,你说你是这样做的:

set PYTHONPATH=%PYTHONPATH%;C:\My_python_lib

这很好,但它不设置PYTHON变量,而是设置PYTHONPATH变量。


同时,仅仅使用set命令只会影响当前的cmd会话。如果你在那之后重新启动,就像你说的那样,你最终会得到一个全新的cmd会话,其中没有设置这个变量。

有几种方法可以永久地设置环境变量——最简单的方法是在XP中的系统控制面板中,当然这在Vista中是不同的,在7中也是不同的,在8中也是不同的,但是你可以谷歌。

或者,只在npm命令之前执行set,中间不重启。


你可以测试你是否做了正确的事情,通过做config脚本试图做的事情:在运行npm之前,尝试运行%PYTHON%。如果你做对了,你会得到一个Python解释器(你可以立即退出)。如果你得到一个错误,你没有做对。


这里有两个问题:

set PYTHON=%PYTHON%;D:\Python

首先,你将PYTHON设置为;D:\ PYTHON。额外的分号适用于以分号分隔的路径列表,如PATH或PYTHONPATH,但不适用于单个值,如PYTHON。同样,当您想向路径列表中添加另一个路径时,可以向现有值中添加一个新值,但不是针对单个值。你只需要设置PYTHON=D:\ PYTHON。

其次,D:\Python不是Python解释器的路径。它类似于D:\Python\Python.exe,或D:\Python\bin\Python.exe。找到正确的路径,确保它能自己工作(例如,输入D:\Python\bin\Python.exe,并确保你有一个Python解释器),然后设置变量并使用它。


So:

set PYTHON=D:\Python\bin\Python.exe

或者,如果你想让它永久,在控制面板中做相同的操作。

这里有一个指南,为我解决了很多这些问题。

http://www.steveworkman.com/node-js/2012/installing-jsdom-on-windows/

我记得python版本特别重要。确保你安装了2.7.3而不是3。

这有帮助:https://www.npmjs.com/package/node-gyp

我是这样做的:

npm install -g node-gyp

然后:

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

我尝试了上面所有的步骤,没有一个对我有效。我试图通过yarn在windows 10系统上安装argon2 npm包。

这就是最终成功的方法

I ran npm --add-python-to-path='true' --debug install --global windows-build-tools to install python as an admin in command terminal the above command ran into an infinite loop which you can terminate by using Ctrl + C. I set the environment variable by running this setx PYTHON "%USERPROFILE%\.windows-build-tools\python27\python.exe" I installed node-gyp globally by running this command npm install --global node-gyp I downloaded VS 2019 community edition installer, while installing I added desktop development with C++ as shown in the image I ran the yarn command again. for e.g yarn add argon2

我希望这些步骤能帮到你。我花了几个小时才找到答案