unable to verify the first certificate

简介: unable to verify the first certificate

使用npm install或cnpm install的时候,出现以下报错 Error: unable to verify the first certificate


原因:2017年2月27后,npm不再支持自签名证书。

npm install走的是https协议,需要数字证书


解决方法:


方法一(推荐):取消ssl验证:npm config set strict-ssl false

如果还没成功,则将npm源更换为国内镜像:

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

npm config set registry http://registry.cnpmjs.org/


方法二:升级npm install npm -g --ca=null或者 npm config set ca=""

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