I am using Authlogic-Connect for third party logins. After running appropriate migrations, Twitter/Google/yahoo logins seem to work fine but the facebook login throws except
A one liner fixes it for Windows in an Admin prompt
choco install wget
(first see chocolatey.org)
wget http://curl.haxx.se/ca/cacert.pem -O C:\cacert.pem && setx /M SSL_CERT_FILE "C:\cacert.pem"
Or just do this:
gem sources -r https://rubygems.org/
gem sources -a http://rubygems.org/
Milanio's method:
gem sources -r https://rubygems.org
gem sources -a http://rubygems.org
gem update --system
gem sources -r http://rubygems.org
gem sources -a https://rubygems.org
gem install [NAME_OF_GEM]