npm install报error errno -4068错误

error Windows_NT 6.1.7601 error argv “D:\Program Files\nodejs\node.exe” “D:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js” “install” “-g” "express-generator" error node v6.2.0 error npm v3.8.9 error path D:\Program\express error code EISDIR error errno -4068 error syscall open error eisdir EISDIR: illegal operation on a directory, open 'D:\Program\express’ error eisdir This is most likely not a problem with npm itself error eisdir and is related to npm not being able to find a package.json in error eisdir a package you are trying to install. npm安装模块时大部分总是出现这个错误，就算我在install时在后面加上–registry=https://registry.npm.taobao.org还是会发生这个错误。还有我安装cnpm镜像也不能安装。 node版本6.2.0 npm版本3.8.9 求大家帮帮我，本人小白，今天一直在搞这个。