Uninitialized constant ComfortableMexicanSofa (NameError)

[Jenny Kortina]

Got gem working but having trouble getting CMS working.

When I uncomment the following from the initializer:

require 'rails_email_preview/integrations/comfortable_mexica_sofa'

The server won't start and I get the following error:

uninitialized constant ComfortableMexicanSofa (NameError)

Do I need to add the comfortable CMS gem and then uncomment that line?

Thanks