今天创建新的个人博客遇到一个小小问题，
修改npm的全局安装路径之后，执行npm i webpack webpack -g测试和npm install 包时发生错误，但是在管理员身份下运行cmd，均能执行成功
具体错误如下：
npm ERR! code EPERM
npm ERR! syscall mkdir
npm ERR! path D:\soft\Nodejs\node_cache\_cacache
npm ERR! errno -4048
npm ERR! Error: EPERM: operation not permitted, mkdir 'D:\soft\Nodejs\node_cache\_cacache'
npm ERR! [Error: EPERM: operation not permitted, mkdir 'D:\soft\Nodejs\node_cache\_cacache'] {
npm ERR! errno: -4048,
npm ERR! code: 'EPERM',
npm ERR! syscall: 'mkdir',
npm ERR! path: 'D:\\soft\\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.
npm ERR! Log files were not written due to an error writing to the directory: D:\soft\Nodejs\node_cache\_logs
npm ERR! You can rerun the command with `--loglevel=verbose` to see the logs in your terminal`
根本原因是无管理员权限，也就无法在node_global和node_cache两个文件夹下进行操作
解决方法如下：
直接修改两个文件夹的权限即可，右键需修改的文件夹如图，选择安全，编辑权限将所有√都选上。
之后运行
npm install webpack -g
测试成功，问题解决。
