npm安装报错errno4068

npm ERR! Windows_NT 10.0.10586

npm ERR! argv "C:\\Software\\Program Files\\JetBrains\\WebStorm 2017.1.4\\nodeJs\\node.exe" "C:\\Software\\Program Files\\JetBrains\\WebStorm 2017.1.4\\nodeJs\\node_modules\\npm\\bin\\npm-cli.js" "install" "yarn" "-g"

npm ERR! node v6.11.0

npm ERR! npm  v3.10.10

npm ERR! path C:\Software\Program Files\JetBrains\WebStorm 2017.1.4\nodeJs\global\yarn

npm ERR! code EISDIR

npm ERR! errno -4068

npm ERR! syscall open



npm ERR! eisdir EISDIR: illegal operation on a directory, open 'C:\Software\Program Files\JetBrains\WebStorm 2017.1.4\nodeJs\global\yarn'

npm ERR! eisdir This is most likely not a problem with npm itself

npm ERR! eisdir and is related to npm not being able to find a package.json in

npm ERR! eisdir a package you are trying to install.



npm ERR! Please include the following file with any support request:

npm ERR!     C:\Windows\system32\npm-debug.log