输出bundle install：
Using rake (10.1.0)
Using i18n (0.6.4)
Using multi_json (1.7.8)
Using activesupport (3.2.7)
Using builder (3.0.4)
Using activemodel (3.2.7)
Using erubis (2.7.0)
Using journey (1.0.4)
Using rack (1.4.5)
Using rack-cache (1.2)
Using rack-test (0.6.2)
Using hike (1.2.3)
Using tilt (1.4.1)
Using sprockets (2.1.3)
Using actionpack (3.2.7)
Using mime-types (1.23)
Using polyglot (0.3.3)
Using treetop (1.4.14)
Using mail (2.4.4)
Using actionmailer (3.2.7)
Using arel (3.0.2)
Using tzinfo (0.3.37)
Using activerecord (3.2.7)
Using activeresource (3.2.7)
Using coffee-script-source (1.6.3)
Using execjs (1.4.0)
Using coffee-script (2.2.0)
Using rack-ssl (1.3.3)
Using json (1.8.0)
Using rdoc (3.12.2)
Using thor (0.18.1)
Using railties (3.2.7)
Using coffee-rails (3.2.2)
Using jquery-rails (3.0.4)
Using bundler (1.1.5)
Using rails (3.2.7)
Using sass (3.2.10)
Using sass-rails (3.2.6)
Using sqlite3 (1.3.7)
Using uglifier (2.1.2)
Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed.
MacBook:tickets michael$
MacBook:tickets michael$ rake db:migration
Could not find i18n-0.6.4 in any of the sources
Run `bundle install` to install missing gems.
我错过了什么？