build failing

rails --version

Rails 3.2.10

ruby --version

ruby 1.9.3p362 (2012-12-25 revision 38607) [i686-linux]

bundle

You cannot specify the same gem twice with different version requirements. You specified: tr8n (~> 3.2.1) and tr8n (>= 0)

cat Gemfile

source "http://rubygems.org"
gem 'will_filter', "> 3.1.2"
gem 'tr8n', "> 3.2.1"

gemspec

gem "bcrypt-ruby", :require => "bcrypt"
gem "sass"