Install using devtools_ The GitHub command installed an R package and reported the following error:

Installation failed: schannel: failed to receive handshake, SSL/TLS connection failed

Baidu [solved] failed to receive handshake SSL/TLS connection failed GitHub. They submitted the code, but I wanted to download it. So I opened the local git bash window and replaced my cacert.pem file path.

After that, execute the download command again