报错如下：
npm WARN read-shrinkwrap This version of npm is compatible with lockfileVersion@1, but package-lock.json was generated for lockfileVersion@2. I'll try to do my best
with it!
npm ERR! code EPERM
npm ERR! syscall open
npm ERR! errno -4048
npm ERR! Error: EPERM: operation not permitted, open 'E:\NODEJS\node_cache\_cacache\tmp\c606bc49'
npm ERR! [OperationalError: EPERM: operation not permitted, open 'E:\NODEJS\node_cache\_cacache\tmp\c606bc49'] {
npm ERR! cause: [Error: EPERM: operation not permitted, open 'E:\NODEJS\node_cache\_cacache\tmp\c606bc49'] {
npm ERR! errno: -4048,
npm ERR! code: 'EPERM',
npm ERR! syscall: 'open',
npm ERR! path: 'E:\\NODEJS\\node_cache\\_cacache\\tmp\\c606bc49'
npm ERR! },
npm ERR! isOperational: true,
npm ERR! errno: -4048,
npm ERR! code: 'EPERM',
npm ERR! syscall: 'open',
npm ERR! path: 'E:\\NODEJS\\node_cache\\_cacache\\tmp\\c606bc49'
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.最后一句：
npm ERR! the command again as root/Administrator.说明是权限问题。
把nodejs文件的权限改一下。右键-属性-安全
问题就解决了。
)
