I have Ruby on Rails installed and I can run the server fine using rails server, but when I use rails console to start the console it doesn't load properly.
I guess it may an issue with WEBrick but that loads in the server?!
Here is a screenshot showing that the server works as expected:

And here is one of the failed console:

I'm running "Windows 7 Ultimate 64bit" with Ruby 2.0.0p598 and Rails 4.2.2.
rails console isn't supposed to run the server. It's the console, and you just mess with it, typing stuff inside and getting replies from it via on-screen text messages.
Everything's working fine, you may continue venturing into the mysterious and rewarding world of Ruby on Rails development.
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