Ubuntu上安装了nodejs和各种依赖后，输入npm install -g hexo-cli遇到以下问题
懂得帮帮忙，悬赏！
npm WARN optional Skipping failed optional dependency /hexo-cli/chokidar/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: fsevents@1.1.2
npm ERR! Linux 4.8.0-36-generic
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "install" "-g" "hexo-cli"
npm ERR! node v4.2.6
npm ERR! npm v3.5.2
npm ERR! path /usr/local/lib
npm ERR! code EACCES
npm ERR! errno -13
npm ERR! syscall access
npm ERR! Error: EACCES: permission denied, access '/usr/local/lib'
npm ERR! at Error (native)
npm ERR! { [Error: EACCES: permission denied, access '/usr/local/lib']
npm ERR! errno: -13,
npm ERR! code: 'EACCES',
npm ERR! syscall: 'access',
npm ERR! path: '/usr/local/lib' }
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! /home/huixiong/npm-debug.log
