问题1:配置环境变量首先,在nodejs安装的目录下新建两个文件夹

其次,新建系统变量

变量名NODE\_PATH

变量值D:\Program Files\nodejs\node\_modules, 这里写你安装之后node\_modules所在的路径

然后,在用户变量的Path中将改为D:\Program Files\nodejs\node\_global(此处是node\_global所在的路径)

最后,在系统变量的Path中新建两个变量,D:\Program Files\nodejs\(nodejs根目录的路径,需要根据自己安装的路径来配)和%NODE\_PATH%

问题2:--

cmd命令窗输入`npm -v时,遇到以下错误

原因:C:\Users\xxx (xxx是用户名)这个路径下,有.npmrc文件,打开我发现最后一行重复了,把它删除即可。

问题3:cmd命令窗输入`npm install -g cnpm --registry=https://registry.npm.taobao.org

`配置全局淘宝镜像时,遇到以下**错误**

代码语言:bash复制npm ERR! code EPERM

npm ERR! syscall mkdir

npm ERR! path D:\Program Files\nodejs\node\_cache\\_cacache

npm ERR! errno -4048

npm ERR! Error: EPERM: operation not permitted, mkdir 'D:\Program Files\nodejs\node\_cache\\_cacache'

npm ERR! [OperationalError: EPERM: operation not permitted, mkdir 'D:\Program Files\nodejs\node\_cache\\_cacache'] {

npm ERR! cause: [Error: EPERM: operation not permitted, mkdir 'D:\Program Files\nodejs\node\_cache\\_cacache'] {

npm ERR! errno: -4048,

npm ERR! code: 'EPERM',

npm ERR! syscall: 'mkdir',

npm ERR! path: 'D:\\Program Files\\nodejs\\node\_cache\\\_cacache'

npm ERR! },

npm ERR! isOperational: true,

npm ERR! errno: -4048,

npm ERR! code: 'EPERM',

npm ERR! syscall: 'mkdir',

npm ERR! path: 'D:\\Program Files\\nodejs\\node\_cache\\\_cacache'

npm ERR! }

npm ERR!

npm ERR! The operation was rejected by your operating system.

npm ERR! It's possible that the file was already in use (by a text editor or antivirus),

npm ERR! or that you lack permissions to access it.

npm ERR!

npm ERR! If you believe this might be a permissions issue, please double-check the

npm ERR! permissions of the file and its containing directories, or try running

npm ERR! the command again as root/Administrator.原因: 看错误的最后一行,没有以管理员身份运行cmd