I am getting the error rake db:migrate --trace rake aborted! You have already activated rake 10.1.1, but your Gemfile requires rake 10.1.0. Using bundle exec may solve this. /Users/iang/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:33:in `block in setup' /Users/iang/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:19:in `setup' /Users/iang/.rv
![rake db:migrate is being aborted due to rake version difference](https://cdn-ak-scissors.b.st-hatena.com/image/square/98d6f053a97a87156775f60757c60865d0f2c47d/height=288;version=1;width=512/https%3A%2F%2Fcdn.sstatic.net%2FSites%2Fstackoverflow%2FImg%2Fapple-touch-icon%402.png%3Fv%3D73d79a89bded)