【nodejs】常见坑 - 安装 express

npm ERR! untar error /Users/imaginexie/.npm/express/4.13.4/ npm ERR! Darwin 14.5.0 npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install" "-g" "express" npm ERR! node v0.12.3 npm ERR! npm v2.9.1 npm ERR! path /usr/local/lib/node_modules/express npm ERR! code EACCES npm ERR! errno -13 npm ERR! Error: EACCES, mkdir '/usr/local/lib/node_modules/express' npm ERR! at Error (native) npm ERR! { [Error: EACCES, mkdir '/usr/local/lib/node_modules/express'] npm ERR! errno: -13, npm ERR! code: 'EACCES', npm ERR! path: '/usr/local/lib/node_modules/express', npm ERR! fstream_type: 'Directory', npm ERR! fstream_path: '/usr/local/lib/node_modules/express', npm ERR! fstream_class: 'DirWriter', npm ERR! fstream_stack: npm ERR! [ '/usr/local/lib/node_modules/npm/node_modules/fstream/lib/:36:23', npm ERR! '/usr/local/lib/node_modules/npm/node_modules/mkdirp/:46:53', npm ERR! ' (:95:15)' ] } 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! /Users/imaginexie/