npm WARN checkPermissions Missing write access to C:\Users\liuyg\AppData\Roaming\npm\node_modules\vue-cli\node_modules\cliui\node_modules\wordwrap
npm ERR! path C:\Users\liuyg\AppData\Roaming\npm\node_modules\vue-cli\node_modules\cliui\node_modules\wordwrap
npm ERR! code ENOENT
npm ERR! errno -4058
npm ERR! syscall access
npm ERR! enoent ENOENT: no such file or directory, access 'C:\Users\liuyg\AppData\Roaming\npm\node_modules\vue-cli\node_modules\cliui\node_modules\wordwrap'
npm ERR! enoent This is related to npm not being able to find a file.
npm ERR! enoent

npm ERR! A complete log of this run can be found in:
npm ERR!   C:\Users\liuyg\AppData\Roaming\npm-cache\_logs\2017-10-18T14_34_23_721Z-debug.log

npm config set registry https://registry.npm.taobao.org

npm --registry https://registry.npm.taobao.org info underscore