为什么在更改npm默认目录后WebStorm不能列出我安装的软件包？

这是执行命令npm config ls -l ：

 C:\Users\Administrator>npm config ls -l ; cli configs long = true user-agent = "npm/2.15.1 node/v4.4.4 win32 x64" ; builtin config undefined cache = "D:\\npm-cache" prefix = "D:\\npm" ; default values access = null always-auth = false bin-links = true browser = null ca = null ; cache = "C:\\Users\\Administrator\\AppData\\Roaming\\npm-cache" (overridden) cache-lock-retries = 10 cache-lock-stale = 60000 cache-lock-wait = 10000 cache-max = null cache-min = 10 cafile = undefined cert = null color = true depth = null description = true dev = false editor = "notepad.exe" engine-strict = false fetch-retries = 2 fetch-retry-factor = 10 fetch-retry-maxtimeout = 60000 fetch-retry-mintimeout = 10000 force = false git = "git" git-tag-version = true global = false globalconfig = "D:\\npm\\etc\\npmrc" globalignorefile = "D:\\npm\\etc\\npmignore" group = 0 heading = "npm" https-proxy = null if-present = false ignore-scripts = false init-author-email = "" init-author-name = "" init-author-url = "" init-license = "ISC" init-module = "C:\\Users\\Administrator\\.npm-init.js" init-version = "1.0.0" json = false key = null link = false local-address = undefined loglevel = "warn" ; long = false (overridden) maxsockets = 50 message = "%s" node-version = "4.4.4" npat = false onload-script = null optional = true parseable = false ; prefix = "D:\\nodejs" (overridden) production = false proprietary-attribs = true proxy = null rebuild-bundle = true registry = "https://registry.npmjs.org/" rollback = true save = false save-bundle = false save-dev = false save-exact = false save-optional = false save-prefix = "^" scope = "" searchexclude = null searchopts = "" searchsort = "name" shell = "C:\\WINDOWS\\system32\\cmd.exe" shrinkwrap = true sign-git-tag = false spin = true strict-ssl = true tag = "latest" tag-version-prefix = "v" tmp = "C:\\Users\\ADMINI~1\\AppData\\Local\\Temp" umask = 0 unicode = true unsafe-perm = true usage = false user = 0 ; user-agent = "npm/{npm-version} node/{node-version} {platform} {arch}" (overridden) userconfig = "C:\\Users\\Administrator\\.npmrc" version = false versions = false viewer = "browser" 

我已经添加了D:\nodejs\和D:\npm到PATH 。

在WebStorm中，npm包列表变空，如下所示：

我怎样才能让WebStorm列出包括全局的所有包？