John, here it is (when running rails console):
C:/Ruby193/lib/ruby/gems/1.9.1/gems/sqlite3-1.3.7-x86-mingw32/lib/sqlite3/database.rb:91:in `initialize': SQLite3::SQLException: no such table: ruote
docs (Sequel::DatabaseError)
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sqlite3-1.3.7-x86-mingw32/lib/sqlite3/database.rb:91:in `new'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sqlite3-1.3.7-x86-mingw32/lib/sqlite3/database.rb:91:in `prepare'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sqlite3-1.3.7-x86-mingw32/lib/sqlite3/database.rb:263:in `query'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sequel-3.48.0/lib/sequel/adapters/sqlite.rb:179:in `block (2 levels) in _execute'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sequel-3.48.0/lib/sequel/database/logging.rb:33:in `log_yield'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sequel-3.48.0/lib/sequel/adapters/sqlite.rb:179:in `block in _execute'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sequel-3.48.0/lib/sequel/database/connecting.rb:235:in `block in synchronize'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sequel-3.48.0/lib/sequel/connection_pool/threaded.rb:104:in `hold'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sequel-3.48.0/lib/sequel/database/connecting.rb:235:in `synchronize'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sequel-3.48.0/lib/sequel/adapters/sqlite.rb:172:in `_execute'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sequel-3.48.0/lib/sequel/adapters/sqlite.rb:122:in `execute'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sequel-3.48.0/lib/sequel/dataset/actions.rb:860:in `execute'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sequel-3.48.0/lib/sequel/adapters/sqlite.rb:350:in `fetch_rows'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sequel-3.48.0/lib/sequel/dataset/actions.rb:156:in `each'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sequel-3.48.0/lib/sequel/dataset/actions.rb:636:in `single_record'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/sequel-3.48.0/lib/sequel/dataset/actions.rb:217:in `first'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/ruote-sequel-2.3.0/lib/ruote/sequel/storage.rb:373:in `do_get'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/ruote-sequel-2.3.0/lib/ruote/sequel/storage.rb:166:in `get'
from C:/Ruby193/lib/ruby/gems/1.9.1/bundler/gems/ruote-2048bc6ad7c6/lib/ruote/storage/base.rb:79:in `replace_engine_configuration'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/ruote-sequel-2.3.0/lib/ruote/sequel/storage.rb:95:in `initialize'
from C:/D/code/rails_proj/ruote_in_rails/config/initializers/ruote.rb:16:in `new'
from C:/D/code/rails_proj/ruote_in_rails/config/initializers/ruote.rb:16:in `<top (required)>'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.12/lib/active_support/dependencies.rb:245:in `load'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.12/lib/active_support/dependencies.rb:245:in `block in load'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.12/lib/active_support/dependencies.rb:236:in `load_dependency'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.12/lib/active_support/dependencies.rb:245:in `load'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/engine.rb:588:in `block (2 levels) in <class:Engine>'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/engine.rb:587:in `each'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/engine.rb:587:in `block in <class:Engine>'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/initializable.rb:30:in `instance_exec'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/initializable.rb:30:in `run'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/initializable.rb:55:in `block in run_initializers'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/initializable.rb:54:in `each'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/initializable.rb:54:in `run_initializers'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/application.rb:136:in `initialize!'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/railtie/configurable.rb:30:in `method_missing'
from C:/D/code/rails_proj/ruote_in_rails/config/environment.rb:5:in `<top (required)>'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/application.rb:103:in `require'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/application.rb:103:in `require_environment!'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.12/lib/rails/commands.rb:40:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'