我正在进入Node.js代码库,该代码库要求我通过NPM(即jQuery)下载一些依赖项。
在尝试运行时npm install jquery,我不断出现此错误:
npm install jquery
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>
看来失败是由于缺少Python安装造成的。好了,我已经安装了Python,设置了变量,然后重新启动,仍然是错误。
关于我所缺少的任何线索吗?
您的问题是您 没有 设置环境变量。
该错误清楚地表明:
gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
在评论中,您说您这样做:
set PYTHONPATH=%PYTHONPATH%;C:\My_python_lib
很好,但是没有设置PYTHON变量,而是设置了PYTHONPATH变量。
PYTHON
PYTHONPATH
同时,仅使用set命令只会影响当前cmd会话。如果重新启动之后(如您所说的那样),最终将导致一个全新的cmd会话,其中未设置该变量。
set
cmd
有几种方法可以永久性地设置环境变量- 最简单的方法是在XP的系统控制面板中,当然在Vista中有所不同,在7中又有所不同,在8中又有所不同,但是您可以用Google搜索。
或者,只需set在npm命令前执行正确操作,而无需在两者之间重新引导。
npm
您可以通过执行与配置脚本完全相同的操作来测试您是否正确完成了操作:在运行之前npm,请尝试运行%PYTHON%。如果做对了,您将获得一个Python解释器(您可以立即退出)。如果遇到错误,则说明您做得不对。
%PYTHON%
这有两个问题:
set PYTHON=%PYTHON%;D:\Python
首先,您将设置PYTHON为;D:\Python。多余的分号适用于以分号分隔的路径列表(例如PATHor)PYTHONPATH,但不适用于单个值(例如)PYTHON。同样,当您想向路径列表中添加其他路径而不是为单个值添加新值时,则需要在现有值上添加新值。因此,您只需要set PYTHON=D:\Python。
;D:\Python
PATH
set PYTHON=D:\Python
其次,D:\Python不是您的Python解释器的路径。就像D:\Python\Python.exe或D:\Python\bin\Python.exe。找到正确的路径,确保它可以独立工作(例如,键入D:\Python\bin\Python.exe并确保您拥有Python解释器),然后设置变量并使用它。
D:\Python
D:\Python\Python.exe
D:\Python\bin\Python.exe
所以:
set PYTHON=D:\Python\bin\Python.exe
或者,如果要使其永久不变,请在“控制面板”中执行等效操作。