NoMethodError: undefined method `seller_managed_order_types' for Apress::Orders::Config:Module
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/bundler/gems/apress-demands-orders-811b350c8929/lib/apress/demands/orders/engine.rb:128:in `block (2 levels) in <class:Engine>'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/bundler/gems/apress-demands-orders-811b350c8929/lib/apress/demands/orders/engine.rb:127:in `tap'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/bundler/gems/apress-demands-orders-811b350c8929/lib/apress/demands/orders/engine.rb:127:in `block in <class:Engine>'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/gems/railties-3.2.22.5/lib/rails/initializable.rb:30:in `instance_exec'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/gems/railties-3.2.22.5/lib/rails/initializable.rb:30:in `run'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/gems/railties-3.2.22.5/lib/rails/initializable.rb:55:in `block in run_initializers'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/gems/railties-3.2.22.5/lib/rails/initializable.rb:54:in `each'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/gems/railties-3.2.22.5/lib/rails/initializable.rb:54:in `run_initializers'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/gems/railties-3.2.22.5/lib/rails/application.rb:136:in `initialize!'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/gems/railties-3.2.22.5/lib/rails/railtie/configurable.rb:30:in `method_missing'
/home/kozyr_rvm/pulscen/config/environment.rb:6:in `<top (required)>'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/gems/activesupport-3.2.22.5/lib/active_support/dependencies.rb:251:in `require'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/gems/activesupport-3.2.22.5/lib/active_support/dependencies.rb:251:in `block in require'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/gems/activesupport-3.2.22.5/lib/active_support/dependencies.rb:236:in `load_dependency'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/gems/activesupport-3.2.22.5/lib/active_support/dependencies.rb:251:in `require'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/gems/railties-3.2.22.5/lib/rails/application.rb:103:in `require_environment!'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/gems/railties-3.2.22.5/lib/rails/application.rb:305:in `block (2 levels) in initialize_tasks'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/bin/ruby_executable_hooks:15:in `eval'
/home/kozyr_rvm/.rvm/gems/ruby-2.2.6/bin/ruby_executable_hooks:15:in `<main>'