npm安装报错（ syscall mkdirnpm ERR

C:\Users\阿西吧>npm install express -g
npm ERR! code EPERM
npm ERR! syscall mkdir
npm ERR! path D:\nodejs\node-v14.17.3\node_cache\_cacache
npm ERR! errno -4048
npm ERR! Error: EPERM: operation not permitted, mkdir 'D:\nodejs\node-v14.17.3\node_cache\_cacache'
npm ERR!  [OperationalError: EPERM: operation not permitted, mkdir 'D:\nodejs\node-v14.17.3\node_cache\_cacache'] {
npm ERR!   cause: [Error: EPERM: operation not permitted, mkdir 'D:\nodejs\node-v14.17.3\node_cache\_cacache'] {
npm ERR!     errno: -4048,
npm ERR!     code: 'EPERM',
npm ERR!     syscall: 'mkdir',
npm ERR!     path: 'D:\\nodejs\\node-v14.17.3\\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:\\nodejs\\node-v14.17.3\\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.

解决办法：

1.删除.npmrc文件
该文件在：C:\Users{账户}\下的.npmrc文件，一般这种类型的都是默认被隐藏，一定要选择将隐藏取消掉

但是该方法删除了，本地配置的本地仓库路径就会失效

2.以管理员身份运行cmd窗口，然后再执行安装命令发现安装成功