test dab$ merb
Loading init file from /Users/dab/src/merb/training/test/config/init.rb
Loading /Users/dab/src/merb/training/test/config/environments/development.rb
 ~ Loaded DEVELOPMENT Environment...
 ~ loading gem 'merb-action-args' ...
 ~ loading gem 'merb-assets' ...
 ~ loading gem 'merb-cache' ...
 ~ loading gem 'merb-helpers' ...
 ~ loading gem 'merb-mailer' ...
 ~ loading gem 'merb-slices' ...
 ~ Registered slice 'MerbAuthSlicePassword' located at /Library/Ruby/Gems/1.8/gems/merb-auth-slice-password-0.9.9
 ~ loading gem 'merb-auth' ...
 ~ loading gem 'dm-core' ...
 ~ loading gem 'dm-aggregates' ...
 ~ loading gem 'dm-migrations' ...
 ~ loading gem 'dm-timestamps' ...
 ~ loading gem 'dm-types' ...
 ~ loading gem 'dm-validations' ...
 ~
 ~ FATAL: The gem merb_datamapper (>= 0, runtime), [] was not found
 ~
 ~
 ~ FATAL: The file merb_datamapper was not found
 ~