vue 创建项目后 yarn add或 npm i 报错 

yarn add 报错 Couldn't find package "vue" on the "npm" registry.

或者 network 'proxy' config is set properly.  See: 'npm help config'

npm i
npm ERR! code ETIMEDOUT
npm ERR! syscall connect
npm ERR! errno ETIMEDOUT
npm ERR! network request to *****.tgz failed, reason: connect ETIMEDOUT ****
npm ERR! network This is a problem related to network connectivity.
npm ERR! network In most cases you are behind a proxy or have bad network settings.
npm ERR! network
npm ERR! network If you are behind a proxy, please make sure that the
npm ERR! network 'proxy' config is set properly.  See: 'npm help config'

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\admin\AppData\Local\npm-cache\_logs\2023-02-15T06_55_58_164Z-debug-0.log

问题原因：因为本地npm 的registry 镜像里没办法直接安装依赖

解决办法一：

npm config set registry "http://registry.npm.taobao.org"

解决办法二：

不想改变本地的registry配置，可直接在项目根目录添加 .npmrc 文件，在.npmrc文件内设置为淘宝镜像即可，如下：

always-auth=true
registry=https://registry.npm.taobao.org