Sinatra + Heroku + Datamapper deploy issues with dm-sqlite-adapter
For some reason, heroku tries to require dm-sqlite-adapter, even though it should use Postgres here. Note, that this happens when I open any URL - not during the git push itself. I built a default facebook app. The Gemfile: source :gemcutter gem "foreman" gem "sinatra" gem "mogli" gem "json" gem "httparty" gem "thin" gem "data_mapper" gem "heroku" group :production do gem "pg" gem "dm-postgres-adapter" end group :development, :test do gem "sqlite3" gem "dm-sqlite-adapter" end Datamapper setup: # Setting up the database DataMapper.setup(:default, ENV['DATABASE_URL'] || "sqlite3://#{Dir.pwd}