rails server command doesn't run

I am trying to run the rails server on windows instance (I am using gitbash). I already install ruby (1.9.3), rails(4.2.0) and gem (1.8.29). I have took a screen shots of my error and my Gemfiles so you guys can look at it. I dig into the error and it seems like PTY files which are required on the slave.rb files is not supported on the windows! Does anyone know the way around this problem? Thanks!

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