执行npm install -g 报错

npm WARN checkPermissions Missing write access to D:\react-native-workspace\react-native\react-native-cli\node_modules\chalk

npm WARN checkPermissions Missing write access to D:\react-native-workspace\react-native\react-native-cli\node_modules\minimist
npm WARN checkPermissions Missing write access to D:\react-native-workspace\react-native\react-native-cli\node_modules\prompt
npm WARN checkPermissions Missing write access to D:\react-native-workspace\react-native\react-native-cli\node_modules\semver
npm WARN checkPermissions Missing write access to D:\react-native-workspace\react-native\react-native-cli\node_modules
npm ERR! path D:\react-native-workspace\react-native\react-native-cli\node_modules\chalk
npm ERR! code ENOENT
npm ERR! errno -4058
npm ERR! syscall access
npm ERR! enoent ENOENT: no such file or directory,access 'D:\react-native-workspace\react-native\react-native-cli\node_modules\chalk'
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\dd\AppData\Roaming\npm-cache\_logs\2017-07-13T01_07_10_719Z-debug.log

解决办法

删除掉 C:\Users\dd\AppData\Roaming\npm-cache\

C:\Users\dd\AppData\Roaming\npm\ 两个文件夹 重新执行 npm install -g