Topic: Factory_ Rails

I am trying to install Factory rails, but I am getting an error as below

Error installing factory_girl:
    factory_girl requires Ruby version >= 1.9.2.

but, i am using ruby 1.9.3 as i can see the same from ruby -v
I am not using RVM. I believe it is looking for ruby 1.8X not ruby 1.9X while installing. could you please let me know how to solve this.

Re: Factory_ Rails

Please check the github documentation for the gem factory_girl in it says that you need to have ruby = 1.9.x.