关于node安装配置时出现的错误

打开cmd以后出现这样的错误

npm ERR! code EPERM
npm ERR! syscall open
npm ERR! path C:\Program Files\nodejs\node_cache\_cacache\tmp\9600794e
npm ERR! errno -4048
npm ERR! Error: EPERM: operation not permitted, open 'C:\Program Files\nodejs\node_cache\_cacache\tmp\9600794e'
npm ERR!  [OperationalError: EPERM: operation not permitted, open 'C:\Program Files\nodejs\node_cache\_cacache\tmp\9600794e'] {
npm ERR!   cause: [Error: EPERM: operation not permitted, open 'C:\Program Files\nodejs\node_cache\_cacache\tmp\9600794e'] {
npm ERR!     errno: -4048,
npm ERR!     code: 'EPERM',
npm ERR!     syscall: 'open',
npm ERR!     path: 'C:\\Program Files\\nodejs\\node_cache\\_cacache\\tmp\\9600794e'
npm ERR!   },
npm ERR!   isOperational: true,
npm ERR!   stack: "Error: EPERM: operation not permitted, open 'C:\\Program Files\\nodejs\\node_cache\\_cacache\\tmp\\9600794e'",
npm ERR!   errno: -4048,
npm ERR!   code: 'EPERM',
npm ERR!   syscall: 'open',
npm ERR!   path: 'C:\\Program Files\\nodejs\\node_cache\\_cacache\\tmp\\9600794e'
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.

解决方法1 

输入cmd 选择以管理员的身份打开 再输入命令 npm install express -g 就可以看到了

 

解决方法2

在 c盘目录下找到那个默认隐藏的文件如C:\Users{账户}\下的.npmrc文件 把它删除掉 记住 不是node.js安装目录下的那个！