```ruby
require "adhearsion"
require "mail"
require "httparty"

require "active_support/concern"
require "active_support/core_ext/numeric/time"

require_relative "twilio/util"
require "adhearsion/twilio/version"
require "adhearsion/twilio/plugin"
require "adhearsion/twilio/controller_methods"

module Adhearsion
  module Twilio
  end
end
```

Use require_relative instead of require
user
```ruby
require "adhearsion"
require "mail"
require "httparty"

require "active_support/concern"
require "active_support/core_ext/numeric/time"

require_relative "twilio/util"
require_relative "twilio/version"
require_relative "twilio/plugin"
require_relative "twilio/controller_methods"

module Adhearsion
  module Twilio
  end
end
```
assistant