Trouble With db:migrate

I'm just learning Rails and working on a simple blog application. I
have everything installed properly (so it seems) but when I run rake
db:migrate I get this error:

Could not find i18n-0.6.1 in any of the sources

I've looked at a couple different sources to try and find what could be
wrong, reinstalled, updated gems but still doesn't seem to be working.

Any help would be greatly appreciated.


How about trying:

.../your_app$ bundle install

And then

.../your_app$ bundle exec rake db:migrate