执行 npm install socket.io安装时报错：
[root@WEB node_modules]# npm install socket.io
npm WARN enoent ENOENT: no such file or directory, open '/usr/local/nodejs/bin/package.json' npm WARN bin No description npm WARN bin No repository field. npm WARN bin No README data npm WARN bin No license field. npm ERR! path /usr/local/nodejs/bin/node_modules/.staging/socket.io-901b0797/node_modules/socket.io-client npm ERR! code ENOENT npm ERR! errno -2 npm ERR! syscall rename npm ERR! enoent ENOENT: no such file or directory, rename '/usr/local/nodejs/bin/node_modules/.staging/socket.io-901b0797/node_modules/socket.io-client' -> '/usr/local/nodejs/bin/node_modules/.staging/socket.io-client-cf016aaa' npm ERR! enoent This is related to npm not being able to find a file. npm ERR! enoent npm ERR! A complete log of this run can be found in: npm ERR! /root/.npm/_logs/2018-08-25T09_40_26_701Z-debug.log
解决方法：
命令行中输入：
npm config set registry https://registry.npm.taobao.org npm config set disturl https://npm.taobao.org/dist
再输入 npm install -g socket.io 即可正确安装。