Problem in development Installation

after running ruby-dev
and then bundle install
and after that

bundle exec rake db:create

this shows

Could not find ipaddr-1.2.3, ipaddr-1.2.3, ipaddr-1.2.3, ipaddr-1.2.3, ipaddr-1.2.3, ipaddr-1.2.3, ipaddr-1.2.3 in any of the sources
Run `bundle install` to install missing gems.

what to do next ?