/usr/lib/ruby/gems/1.8/gems/dm-core-0.9.2/lib/dm-core/property.rb:249: warning: already initialized constant PROPERTY_OPTIONS
/usr/lib/ruby/gems/1.8/gems/dm-core-0.9.2/lib/dm-core/property.rb:272: warning: already initialized constant VISIBILITY_OPTIONS
/usr/lib/ruby/gems/1.8/gems/datamapper-0.3.2/lib/data_mapper/query.rb:8: warning: already initialized constant OPTIONS
You must install the DataObjects::SQLite3 driver.
  gem install do_sqlite3