npm実行エラーError:EEXIST:file already exists解決方法

      node   D:\Program Files
odejs      ，  npm config set prefix "D:\Program Files
odejs
pm"   npm          。  D:\Program Files
odejs  npm(linux       )    ，    npm      Error: EEXIST: file already exists, mkdir 'D:\Program Files
odejs
pm'     。       2 。
    1、 npm    ，    npm   D:\Program Files
odejs    npm    ，      npm config set prefix          。
    2、 %appdata%/../..        .npmrc   ，  npm userconfig  ，     ：prefix=D:\Program Files
odejs
pm，        prefix         。
      npm config set prefix  npm config set cache    npm            cache   。
      npm install express -g   express  ，-g      npm         。    -g               。
      npm config ls -l         ：

C:\Users\soft>npm config ls -l
; cli configs
long = true
user-agent = "npm/3.10.9 node/v7.2.0 win32 x64"

; userconfig C:\Users\soft\.npmrc
prefix = "D:\\Program Files\
odejs\
ode_global"

; builtin config undefined
; prefix = "C:\\Users\\soft\\AppData\\Roaming\
pm" (overridden)

; default values
access = null
also = null
always-auth = false
bin-links = true
browser = null
ca = null
cache = "C:\\Users\\soft\\AppData\\Roaming\
pm-cache"
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
dry-run = 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
global-style = false
globalconfig = "D:\\Program Files\
odejs\
ode_global\\etc\
pmrc"
globalignorefile = "D:\\Program Files\
odejs\
ode_global\\etc\
pmignore"
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\\soft\\.npm-init.js"
init-version = "1.0.0"
json = false
key = null
legacy-bundling = false
link = false
local-address = undefined
loglevel = "warn"
; long = false (overridden)
maxsockets = 50
message = "%s"
node-version = "7.2.0"
npat = false
onload-script = null
only = null
optional = true
parseable = false
; prefix = "D:\\Program Files\
odejs" (overridden)
production = false
progress = true
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
strict-ssl = true
tag = "latest"
tag-version-prefix = "v"
tmp = "C:\\Users\\soft\\AppData\\Local\\Temp"
umask = 0
unicode = false
unsafe-perm = true
usage = false
user = 0
; user-agent = "npm/{npm-version} node/{node-version} {platform} {arch}" (overridden)
userconfig = "C:\\Users\\soft\\.npmrc"
version = false
versions = false
viewer = "browser"

      npm    ：npm config set registry http://registry.npmjs.vitecho.com 
           npm  ：npm install -g express --registry=https://registry.npm.taobao.org
          NODE_PATH，   node_modules       ：D:\Program Files
odejs
ode_global
ode_modules。        ，   require('express')          ：

> require('express')
Error: Cannot find module 'express'
    at Function.Module._resolveFilename (module.js:470:15)
    at Function.Module._load (module.js:418:25)
    at Module.require (module.js:498:17)
    at require (internal/module.js:20:19)
    at repl:1:1
    at realRunInThisContextScript (vm.js:22:35)
    at sigintHandlersWrap (vm.js:98:12)
    at ContextifyScript.Script.runInThisContext (vm.js:24:12)
    at REPLServer.defaultEval (repl.js:313:29)
    at bound (domain.js:280:14)

    npm     6   ，       。
    1、     。 --proxy http://server:port  proxy    http://server:port。
    2、    。  npm_config_              npm     。   proxy           npm_config_proxy=http://server:port。
    3、      。    npm config get userconfig      。   mac          $HOME/.npmrc。
    4、      。    npm config get globalconfig      。mac        /usr/local/etc/npmrc。
    5、      。  npm     npmrc  。
    6、    。 npm         ，    5     ， npm         。

      npm config get userconfig  userconfig       ，  npm config edit  userconfig    。  npm config get globalconfig  globalconfig    ，  npm config --global edit  globalconfig    ：

C:\Users\soft>npm config edit

C:\Users\soft>npm config get userconfig
C:\Users\soft\.npmrc

C:\Users\soft>npm config get globalconfig
D:\Program Files
odejs
ode_global\etc
pmrc

C:\Users\soft>npm config --global edit

C:\Users\soft>

    npm install xxx            node_module  。
    npm install xxx -g            
    npm ls           
    npm ls -g             
    npm uninstall xxx  (-g)     
    npm cache clean     
    node     （windows  ）, C:\Users\           .npmrc  ，             npm     ：

prefix = D:\Program Files
odejs
ode_global
cache  = D:\Program Files
odejs
ode_global

          D:\Program Files
odejs
ode_global
ode_modules   path ，                          。