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淘宝镜像已过期，如果使用的淘宝镜像可能npm install安装不成功，解决办法：查看镜像npm get registry，如果用的淘宝镜像，按下面的操作
1. 清空缓存
npm cache clean --force
2. 切换新源
npm config set registry https://registry.npmmirror.com