Make Your Gemfile lists the gem capybara (>= 0) more than once.
You should probably keep only one of them.
While it's not a problem now, it could cause errors if you change the version of just one of them later.
Using rake 10.3.1
Using activesupport 3.0.3
Using builder 2.1.2
Using i18n 0.6.9
Using rack 1.2.8
Using tzinfo 0.3.39
Using mime-types 1.25.1
Using polyglot 0.3.4
Using arel 2.0.10
Using addressable 2.3.6
Using bcrypt 3.1.7
Using abstract 1.0.0
Using mini_portile 0.5.3
Using diff-lcs 1.2.5
Using multi_json 1.9.3
Using multi_test 0.1.1
Using bundler 1.6.1
Using thor 0.14.6
Using database_cleaner 1.2.0
Using orm_adapter 0.0.7
Using rspec-core 2.14.8
Using rspec-mocks 2.14.6
Using shoulda-context 1.2.1
Using spork 0.9.2
Using sqlite3 1.3.9
Using will_paginate 3.0.5
Using factory_girl 4.4.0
Using shoulda-matchers 2.6.0
Using activemodel 3.0.3
Using rack-mount 0.6.14
Using rack-test 0.5.7
Using warden 1.2.3
Using treetop 1.4.15
Using launchy 2.4.2
Using bcrypt-ruby 3.1.5
Using erubis 2.6.6
Using nokogiri 1.6.1
Using rspec-expectations 2.14.5
Using gherkin 2.12.2
Using shoulda 3.5.0
Using activerecord 3.0.3
Using activeresource 3.0.3
Using mail 2.2.20
Using devise 1.5.4
Using actionpack 3.0.3
Using xpath 2.0.0
Using rspec 2.14.1
Using cucumber 1.3.14
Using actionmailer 3.0.3
Using railties 3.0.3
Using capybara 2.2.1
Using rails 3.0.3
Using jquery-rails 3.1.0
Using rspec-rails 2.14.2
Using cucumber-rails 1.4.0
Using delayed_job 4.0.1 from git://github.com/collectiveidea/delayed_job.git (at master)
Your bundle is complete!
Use `bundle show [gemname]` to see where a bundled gem is installed. run。
Remove dupe。