无法在Ruby 2.4.1上安装宝石。
$ruby -v
ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-darwin14]
$rvm osx-ssl-certs status all
Selected SSL certs for: ruby-1.9.2-p290
cURL certificate bundle /usr/share/curl/curl-ca-bundle.crt not found
Certificates bundle /usr/local/etc/openssl/cert.pem is up to date.
Certificates bundle /etc/openssl/cert.pem is up to date.
Certificates bundle is old.
$gem install bundler
ERROR: While executing gem ... (Gem::Exception)
Unable to require openssl, install OpenSSL and rebuild ruby (preferred) or use non-HTTPS sources
$rvm osx-ssl-certs update all
Selected SSL certs for: ruby-1.9.2-p290
cURL certificate bundle /usr/share/curl/curl-ca-bundle.crt not found
Updating certificates bundle /usr/local/etc/openssl/cert.pem: Already up to date.
Updating certificates bundle /etc/openssl/cert.pem: Already up to date.
Updating certificates bundle : Empty path passed to certificates update, functions stack: requirements_osx_update_openssl_cert_run __rvm_osx_ssl_certs_update_for_path __rvm_osx_ssl_certs_run_filter_and_run __rvm_osx_ssl_certs_run __rvm_osx_ssl_certs_update __rvm_osx_ssl_certs source __rvm_run_wrapper rvm
Failed.
该基本证书是怎么回事？
尝试卸载和重新安装在上一个版本上的OpenSSL。尝试了rvm get head。没有运气。
在我的情况下，我有一个openssl的版本，这引起了问题。解决方案是将其删除：
brew uninstall --force openssl098