```ruby
module Capistrano
  module Notifier
  end
end

require 'active_support'
require 'capistrano'

require 'capistrano/notifier/base'

```

Revert "No more need for active_support/core_ext"
user
```ruby
module Capistrano
  module Notifier
  end
end

require 'active_support'
require 'active_support/core_ext'
require 'capistrano'

require 'capistrano/notifier/base'

```
assistant