[网络协议]LibreSSL SSL_connect: SSL_ERROR_SYSCALL in connection to github.com:443

错误
[!] Error installing DoubleConversion
[!] /usr/bin/git clone https://github.com/google/double-conversion.git /var/folders/_h/xtz7k0td2vv6r1hq9jswkyx40000gn/T/d20211021-51746-zrhmvm --template= --single-branch --depth 1 --branch v1.1.6

Cloning into ‘/var/folders/_h/xtz7k0td2vv6r1hq9jswkyx40000gn/T/d20211021-51746-zrhmvm’…
fatal: unable to access ‘https://github.com/google/double-conversion.git/’: LibreSSL SSL_connect: SSL_ERROR_SYSCALL in connection to github.com:443

解决方法

git config --global --add remote.origin.proxy ""

参考
stackoverflow

上面方法不行的话

想办法改善网络，用手机热点看看。
多次 pod install 看一看