npm install 下载资源时 npm ERR! code ENOTFOUND npm ERR! errno ENOTFOUND_npm err! code enotfound npm err! syscall getaddrin

npm install 下载资源时出现下面问题：

问题：

npm ERR! code ENOTFOUND
npm ERR! errno ENOTFOUND
npm ERR! network request to http://registry.cnpmjs.org/@riophae%2fvue-treeselect failed, reason: getaddrinfo ENOTFOUND registry.cnpmjs.org
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'
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处理方法：

1、取消ssl验证：

npm config set strict-ssl false


2、更换npm镜像源：
npm config set registry http://registry.cnpmjs.org
npm config set registry http://registry.npm.taobao.org
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