npm ERR! Error: EPERM: operation not permitted

在学习vue+typescript的时候，突然报了以下错误

$ npm install
npm WARN tarball tarball data for [email protected] (sha1-SFOz4nXs2qJ/eP2kbcJzp+t
/wcg=) seems to be corrupted. Trying one more time.
npm ERR! path E:\vue-typescript\node_modules\.staging\typescript-10ba8b53\lib\ty
pescriptServices.js
npm ERR! code EPERM
npm ERR! errno -4048
npm ERR! syscall unlink
npm ERR! Error: EPERM: operation not permitted, unlink 'E:\vue-typescript\node_m
odules\.staging\typescript-10ba8b53\lib\typescriptServices.js'
npm ERR!  { Error: EPERM: operation not permitted, unlink 'E:\vue-typescript\nod
e_modules\.staging\typescript-10ba8b53\lib\typescriptServices.js'
npm ERR!   cause:
npm ERR!    { Error: EPERM: operation not permitted, unlink 'E:\vue-typescript\n
ode_modules\.staging\typescript-10ba8b53\lib\typescriptServices.js'
npm ERR!      errno: -4048,
npm ERR!      code: 'EPERM',
npm ERR!      syscall: 'unlink',
npm ERR!      path: 'E:\\vue-typescript\\node_modules\\.staging\\typescript-10ba
8b53\\lib\\typescriptServices.js' },
npm ERR!   stack: 'Error: EPERM: operation not permitted, unlink \'E:\\vue-types
cript\\node_modules\\.staging\\typescript-10ba8b53\\lib\\typescriptServices.js\'
',
npm ERR!   errno: -4048,
npm ERR!   code: 'EPERM',
npm ERR!   syscall: 'unlink',
npm ERR!   path: 'E:\\vue-typescript\\node_modules\\.staging\\typescript-10ba8b5
3\\lib\\typescriptServices.js',
npm ERR!   parent: 'hello-world' }
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 ant
ivirus),
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 t
he
npm ERR! permissions of the file and its containing directories, or try running
npm ERR! the command again as root/Administrator (though this is not recommended
).

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Administrator\AppData\Roaming\npm-cache\_logs\2019-02-10T1
3_56_10_017Z-debug.log

解决方案如下
看错误貌似是权限问题，网上也有很多说权限问题，切换到管理员窗口即可，
自己本身就是管理员权限，因而无用，，

最后症结是缓存问题导致：

解决办法如下

需要删除npmrc文件。

强调：不是nodejs安装目录npm模块下的那个npmrc文件

而是在C:\Users\{账户}\下的.npmrc文件..

当然也有说用命令清除缓存的，我自己试了下没成功，上面删除文件来的更加直接彻底，
关键是见效，记录于此。