```ruby
require 'active_support'
require 'active_support/json'

require 'tinder/connection'
require 'tinder/campfire'
require 'tinder/room'
require 'tinder/middleware'

module Tinder
  class Error < StandardError; end
  class SSLRequiredError < Error; end
  class AuthenticationFailed < Error; end
  class ListenFailed < Error; end
end
```

Make sure we load the mime types.
user
```ruby
require 'active_support'
require 'active_support/json'
require 'mime/types'

require 'tinder/connection'
require 'tinder/campfire'
require 'tinder/room'
require 'tinder/middleware'

module Tinder
  class Error < StandardError; end
  class SSLRequiredError < Error; end
  class AuthenticationFailed < Error; end
  class ListenFailed < Error; end
end
```
assistant