Hello and had problems trying to use this gem would like to know how to fix it add it to my Gemfile
gem "social_stream", "~> 2.2.2"
When I run "bundle install" I get this error in response, that I can do? I am a little new.
Bundler could not find compatible versions for gem "rails":
In Gemfile:
social_stream (~> 2.2.2) ruby depends on
rails (~> 3.1) ruby
rails (4.0.0)
as I can use this gem in Rails 4.0 or Rails version change, whether it is advisable to do so?
thanks