Cannot instantiate adapter of Lotus::Model::Adapters::SqlAdapter

gistfile1.txt

Cannot instantiate adapter of Lotus::Model::Adapters::SqlAdapter (Sequel::Database.connect takes either a Hash or a String, given: nil)
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/lotus-model-0.3.2/lib/lotus/model/config/adapter.rb:101:in `rescue in instantiate_adapter'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/lotus-model-0.3.2/lib/lotus/model/config/adapter.rb:95:in `instantiate_adapter'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/lotus-model-0.3.2/lib/lotus/model/config/adapter.rb:81:in `build'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/lotus-model-0.3.2/lib/lotus/model/configuration.rb:168:in `_build_adapter'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/lotus-model-0.3.2/lib/lotus/model/configuration.rb:59:in `load!'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/lotus-model-0.3.2/lib/lotus/model.rb:87:in `load!'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/bin/ruby_executable_hooks:15:in `eval'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/bin/ruby_executable_hooks:15:in `<main>'
Sequel::Error: Sequel::Database.connect takes either a Hash or a String, given: nil
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/sequel-4.22.0/lib/sequel/database/connecting.rb:57:in `connect'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/sequel-logger-1.0/lib/sequel-logger.rb:10:in `connect'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/sequel-4.22.0/lib/sequel/core.rb:95:in `connect'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/lotus-model-0.3.2/lib/lotus/model/adapters/sql_adapter.rb:46:in `initialize'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/lotus-model-0.3.2/lib/lotus/model/config/adapter.rb:97:in `new'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/lotus-model-0.3.2/lib/lotus/model/config/adapter.rb:97:in `instantiate_adapter'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/lotus-model-0.3.2/lib/lotus/model/config/adapter.rb:81:in `build'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/lotus-model-0.3.2/lib/lotus/model/configuration.rb:168:in `_build_adapter'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/lotus-model-0.3.2/lib/lotus/model/configuration.rb:59:in `load!'
/home/darwin/.rvm/gems/ruby-2.2.1@mobijob-be/gems/lotus-model-0.3.2/lib/lotus/model.rb:87:in `load!'
(See full trace by running task with --trace)