npm安装一直有问题.查询不了

输入node -v正常....但是输入npm -v就出现下面这种情况

C:\Users\Administrator>npm -v
Error: EINVAL: invalid argument, mkdir 'D:\SDE\Node8.9.4\node_globalF:\QQPCmgr\Professional\MSBuild\Microsoft\VisualStudio\NodeJs\node_global'
TypeError: Cannot read property 'loaded' of undefined
at exit (E:\node\node_modules\npm\lib\utils\error-handler.js:97:27)
at errorHandler (E:\node\node_modules\npm\lib\utils\error-handler.js:216:3)
at E:\node\node_modules\npm\bin\npm-cli.js:78:20
at cb (E:\node\node_modules\npm\lib\npm.js:225:22)
at E:\node\node_modules\npm\lib\npm.js:263:24
at E:\node\node_modules\npm\lib\config\core.js:81:7
at Array.forEach ()
at E:\node\node_modules\npm\lib\config\core.js:80:13
at f (E:\node\node_modules\npm\node_modules\once\once.js:25:25)
at afterExtras (E:\node\node_modules\npm\lib\config\core.js:171:20)
E:\node\node_modules\npm\lib\utils\error-handler.js:97
var doExit = npm.config.loaded ? npm.config.get('_exit') : true
^

TypeError: Cannot read property 'loaded' of undefined
at exit (E:\node\node_modules\npm\lib\utils\error-handler.js:97:27)
at process.errorHandler (E:\node\node_modules\npm\lib\utils\error-handler.js:216:3)
at process.emit (events.js:210:5)
at process._fatalException (internal/process/execution.js:150:25)
6.11.3

可能是之前修改默认的全局目录好像位置输入错了....但是不知道怎么改回来

卸载原来的node，重新安装

你可以实时nvm去控制node版本：参考文章：https://blog.csdn.net/gc_89757/article/details/86492928