在VS code中导入新项目，执行npm install时报错：
npm warn old lockfile Could not fetch metadata for @antv/coord@0.1.0 FetchError: request to https://registry.npmjs.org/@antv%2fcoord failed, reason: connect ETIMEDOUT 150.242.56.251:443
npm warn old lockfile at ClientRequest.<anonymous> (D:\softFile\Node.js\node_modules\npm\node_modules\minipass-fetch\lib\index.js:130:14)
npm warn old lockfile at ClientRequest.emit (node:events:519:28)
npm warn old lockfile at _destroy (node:_http_client:880:13)
npm warn old lockfile at onSocketNT (node:_http_client:900:5)
npm warn old lockfile at process.processTicksAndRejections (node:internal/process/task_queues:83:21) {
npm warn old lockfile code: 'ETIMEDOUT',
npm warn old lockfile errno: 'ETIMEDOUT',
npm warn old lockfile syscall: 'connect',
npm warn old lockfile address: '150.242.56.251',
npm warn old lockfile port: 443,
npm warn old lockfile type: 'system'
npm warn old lockfile }原因：由于访问国内访问npm的资源库地址（https://registry.npmjs.org）连接超时导致。
解决办法：
1）将npm的镜像源设置为国内的即可（任选一种）：
# 更换成淘宝镜像源
npm config set registry https://registry.npm.taobao.org
# 更换成阿里镜像源
npm config set registry https://npm.aliyun.com/
# 更换成华为镜像源
npm config set registry https://mirrors.huaweicloud.com/repository/npm/
# 更换成腾讯镜像源
npm config set registry http://mirrors.cloud.tencent.com/npm/2）设置完成后，重新执行npm即可。
扩展：通过下面命令可查看当前的镜像源：
npm config get registry
