$ npm run build

> mpvue@1.0. build D:\wamp\www\webpack\mpvue\my-project

> node build/build.js wx

D:\wamp\www\webpack\mpvue\my-project\build\build.js:

  if (err) throw err

           ^

Error: EPERM: operation not permitted, unlink 'D:\wamp\www\webpack\mpvue\my-project\dist\wx\components'

npm ERR! code ELIFECYCLE

npm ERR! errno

npm ERR! mpvue@1.0. build: `node build/build.js wx`

npm ERR! Exit status

npm ERR!

npm ERR! Failed at the mpvue@1.0. build script.

npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:

npm ERR!     C:\Users\Administrator.KING\AppData\Roaming\npm-cache\_logs\--04T01_42_19_971Z-debug.log