使用 npm install -g generator-jhipster 时出错

Error while using npm install -g generator-jhipster

我正在按照 https://jhipster.github.io/installation.html 中的安装步骤进行操作。在 generator-jhipster 之前一切都很顺利。当我 运行 npm install -g generator-jhipster 时,出现以下错误,有人可以帮我解决这个问题吗?

C:\Users\smart>npm install -g generator-jhipster
/
> spawn-sync@1.0.13 postinstall C:\Users\smart\AppData\Roaming\npm\node_module
s\generator-jhipster\node_modules\yeoman-generator\node_modules\cross-spawn\node
_modules\spawn-sync
> node postinstall

npm ERR! Windows_NT 6.3.9600
npm ERR! argv "C:\Program Files\nodejs\\node.exe" "C:\Program Files\nodejs
\node_modules\npm\bin\npm-cli.js" "install" "-g" "generator-jhipster"
npm ERR! node v0.12.7
npm ERR! npm  v2.11.3
npm ERR! path C:\Users\smart\AppData\Roaming\npm-cache\isarray[=10=].0.1\package\p
ackage.json
npm ERR! code EPERM
npm ERR! errno -4048

npm ERR! Error: EPERM, rename 'C:\Users\smart\AppData\Roaming\npm-cache\isarra
y[=10=].0.1\package\package.json'
npm ERR!     at Error (native)
npm ERR!  { [Error: EPERM, rename 'C:\Users\smart\AppData\Roaming\npm-cache\is
array[=10=].0.1\package\package.json']
npm ERR!   errno: -4048,
npm ERR!   code: 'EPERM',
npm ERR!   path: 'C:\Users\smart\AppData\Roaming\npm-cache\isarray\0.0.
1\package\package.json',
npm ERR!   parent: 'readable-stream' }
npm ERR!
npm ERR! Please try running this command again as root/Administrator.

npm ERR! Please include the following file with any support request:
npm ERR!     C:\Users\smart\npm-debug.log

Please try running this command again as root/Administrator

你真的试过了吗?