如果你在windows7平台上，也许你应该像这样改变NODE_PATH: % AppData % \ npm \ node_modules

我将引用这个节点的博客文章…

In general, the rule of thumb is: If you’re installing something that you want to use in your program, using require('whatever'), then install it locally, at the root of your project. If you’re installing something that you want to use in your shell, on the command line or something, install it globally, so that its binaries end up in your PATH environment variable. ... Of course, there are some cases where you want to do both. Coffee-script and Express both are good examples of apps that have a command line interface, as well as a library. In those cases, you can do one of the following: Install it in both places. Seriously, are you that short on disk space? It’s fine, really. They’re tiny JavaScript programs. Install it globally, and then npm link coffee-script or npm link express (if you’re on a platform that supports symbolic links.) Then you only need to update the global copy to update all the symlinks as well.

尝试添加/编辑环境变量，得出结论:

Edit/add User variables (of the upper box) instead of System variables (of the lower part); otherwise you have to "run as administrator" to get it work. Append ;%AppData%\npm to Path in order to use it as a command line tool (if supported, like jshint and grunt-cli). Create NODE_PATH and set it %AppData%\npm\node_modules in order to require('<pkg_name>') in scripts without install it in the project directory. (But npm link is suggested for this requirement if you're working on OS with mklink such as Vista and newer.)

测试环境:

赢7 (Ent。， 64位，SP1)， Node.js 4.2.4, npm 2.14.12 win8.1 (Ent。， 64位)，Node.js 0.10.30, npm 1.4.21

我必须添加以下路径变量下的系统变量。在用户变量下设置变量不适合我。我用的是windows 11。

%USERPROFILE%\AppData\Roaming\npm

只需从这里下载并重新安装节点，这将修复所有路径问题。

不要忘记重新启动命令提示符或终端。

我知道我可以唤醒一个僵尸，但我认为这仍然是一个问题，如果你需要全局访问Windows 7上的节点模块，你需要将这个添加到你的全局变量路径:

C:\Users\{USER}\AppData\Roaming\npm

重要的是:只有这个没有node_modules部分，我花了半个小时才看到这个。