我正在使用Apartment gem构建多租户应用程序。但是，当我是脚手架或生成任何模型时，我收到以下错误：
rails g model Car name
/Users/palmeiras/.rvm/gems/ruby-2.4.0/gems/actionpack-5.1.1/lib/action_dispatch/middleware/stack.rb:35:in `build': undefined method `new' for "Apartment::Elevators::Domain":String
Did you mean? next (NoMethodError)
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/actionpack-5.1.1/lib/action_dispatch/middleware/stack.rb:99:in `block in build'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/actionpack-5.1.1/lib/action_dispatch/middleware/stack.rb:99:in `each'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/actionpack-5.1.1/lib/action_dispatch/middleware/stack.rb:99:in `inject'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/actionpack-5.1.1/lib/action_dispatch/middleware/stack.rb:99:in `build'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/railties-5.1.1/lib/rails/engine.rb:508:in `block in app'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/railties-5.1.1/lib/rails/engine.rb:504:in `synchronize'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/railties-5.1.1/lib/rails/engine.rb:504:in `app'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/railties-5.1.1/lib/rails/application/finisher.rb:45:in `block in <module:Finisher>'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/railties-5.1.1/lib/rails/initializable.rb:30:in `instance_exec'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/railties-5.1.1/lib/rails/initializable.rb:30:in `run'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/railties-5.1.1/lib/rails/initializable.rb:59:in `block in run_initializers'
from /Users/codevops/.rvm/rubies/ruby-2.4.0/lib/ruby/2.4.0/tsort.rb:228:in `block in tsort_each'
from /Users/codevops/.rvm/rubies/ruby-2.4.0/lib/ruby/2.4.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
from /Users/codevops/.rvm/rubies/ruby-2.4.0/lib/ruby/2.4.0/tsort.rb:431:in `each_strongly_connected_component_from'
from /Users/codevops/.rvm/rubies/ruby-2.4.0/lib/ruby/2.4.0/tsort.rb:349:in `block in each_strongly_connected_component'
from /Users/codevops/.rvm/rubies/ruby-2.4.0/lib/ruby/2.4.0/tsort.rb:347:in `each'
from /Users/codevops/.rvm/rubies/ruby-2.4.0/lib/ruby/2.4.0/tsort.rb:347:in `call'
from /Users/codevops/.rvm/rubies/ruby-2.4.0/lib/ruby/2.4.0/tsort.rb:347:in `each_strongly_connected_component'
from /Users/codevops/.rvm/rubies/ruby-2.4.0/lib/ruby/2.4.0/tsort.rb:226:in `tsort_each'
from /Users/codevops/.rvm/rubies/ruby-2.4.0/lib/ruby/2.4.0/tsort.rb:205:in `tsort_each'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/railties-5.1.1/lib/rails/initializable.rb:58:in `run_initializers'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/railties-5.1.1/lib/rails/application.rb:353:in `initialize!'
from /Users/codevops/dev/auto_repairs/config/environment.rb:5:in `<top (required)>'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/spring-2.0.1/lib/spring/application.rb:92:in `require'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/spring-2.0.1/lib/spring/application.rb:92:in `preload'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/spring-2.0.1/lib/spring/application.rb:143:in `serve'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/spring-2.0.1/lib/spring/application.rb:131:in `block in run'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/spring-2.0.1/lib/spring/application.rb:125:in `loop'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/spring-2.0.1/lib/spring/application.rb:125:in `run'
from /Users/codevops/.rvm/gems/ruby-2.4.0/gems/spring-2.0.1/lib/spring/application/boot.rb:19:in `<top (required)>'
from /Users/codevops/.rvm/rubies/ruby-2.4.0/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /Users/codevops/.rvm/rubies/ruby-2.4.0/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from -e:1:in `<main>'
rails version 5.1.1