Ruby: problem installing EventMachine under Windows 7

Question

I am trying to install the gem EventMachine on Windows 7 (using Ruby 1.9.2 with RubyInstaller) via bundle, but I get the following error. I also installed DevKit and it is w

Answer 1

I changed the gemfile and included eventmachine (1.0.0.beta.2) version in it and now its working file.