npm install 模块失败的原因之没有创建package.json文件

以安装 superagent 为例

npm i superagent

错误日志如下

npm ERR! code EACCES
npm ERR! syscall rename
npm ERR! path /Users/zhangchi/node_modules/_minipass@2.9.0@minipass/node_modules/yallist
npm ERR! dest /Users/zhangchi/node_modules/_minipass@2.9.0@minipass/node_modules/.yallist-wfFlDPoD
npm ERR! errno -13
npm ERR! Error: EACCES: permission denied, rename '/Users/zhangchi/node_modules/_minipass@2.9.0@minipass/node_modules/yallist' -> '/Users/zhangchi/node_modules/_minipass@2.9.0@minipass/node_modules/.yallist-wfFlDPoD'
npm ERR!  [Error: EACCES: permission denied, rename '/Users/zhangchi/node_modules/_minipass@2.9.0@minipass/node_modules/yallist' -> '/Users/zhangchi/node_modules/_minipass@2.9.0@minipass/node_modules/.yallist-wfFlDPoD'] {
npm ERR!   errno: -13,
npm ERR!   code: 'EACCES',
npm ERR!   syscall: 'rename',
npm ERR!   path: '/Users/zhangchi/node_modules/_minipass@2.9.0@minipass/node_modules/yallist',
npm ERR!   dest: '/Users/zhangchi/node_modules/_minipass@2.9.0@minipass/node_modules/.yallist-wfFlDPoD'
npm ERR! }
npm ERR! 
npm ERR! The operation was rejected by your operating system.
npm ERR! It is likely you do not have the permissions to access this file as the current user
npm ERR! 
以安装 superagent 为例 

```shell
npm i superagent

实际原因就是目录缺少 package.json 文件，执行

npm init --yes