SSL Certificate Update
If this error occurs you can't install any gems. Most likely this happen because there is an old ruby gems installed on your computer.
- Download the latest GEM of rubygems here
- Go to the directory in CMD
- Write the following to install the GEM
gem -vyou can verify the newest version is correctly installed.
With the newest version installed it should be possible again to install gems.
Workaround solution that bypasses the SSL
First we add a new source with
gem sources -a http://rubygems.org
Then we delete the old source with
gem sources -r https://rubygems.org
This will bypass the security and allows you to install the gems.