Undefined method `unloadable' when upgrade to rails 7 - ruby-on-rails

Question

I have a controller SocketController inherit WebsocketRails::BaseController
class SocketController < WebsocketRails::BaseController
before_action :authenticate_user!
end
After upgrade rails version to 7.0.4
When I run rails s got this error
How to fix it, please!!
Failure/Error:
class SocketController < WebsocketRails::BaseController
before_action :authenticate_user!
NoMethodError:
undefined method `unloadable' for WebsocketRails::BaseController:Class
unloadable controller
^^^^^^^^^^
# ./vendor/bundle/ruby/3.1.0/gems/websocket-rails-0.7.0/lib/websocket_rails/base_controller.rb:45:in `inherited'
# ./app/controllers/socket_controller.rb:1:in `<top (required)>'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/kernel.rb:30:in `require'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/kernel.rb:30:in `require'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/loader/helpers.rb:135:in `const_get'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/loader/helpers.rb:135:in `cget'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/loader/eager_load.rb:169:in `block in actual_eager_load_dir'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/loader/helpers.rb:40:in `block in ls'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/loader/helpers.rb:25:in `each'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/loader/helpers.rb:25:in `ls'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/loader/eager_load.rb:164:in `actual_eager_load_dir'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/loader/eager_load.rb:17:in `block (2 levels) in eager_load'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/loader/eager_load.rb:16:in `each'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/loader/eager_load.rb:16:in `block in eager_load'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/loader/eager_load.rb:10:in `synchronize'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/loader/eager_load.rb:10:in `eager_load'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/loader.rb:296:in `block in eager_load_all'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/loader.rb:294:in `each'
# ./vendor/bundle/ruby/3.1.0/gems/zeitwerk-2.6.6/lib/zeitwerk/loader.rb:294:in `eager_load_all'
# ./vendor/bundle/ruby/3.1.0/gems/railties-7.0.4/lib/rails/application/finisher.rb:74:in `block in <module:Finisher>'
# ./vendor/bundle/ruby/3.1.0/gems/railties-7.0.4/lib/rails/initializable.rb:32:in `instance_exec'
# ./vendor/bundle/ruby/3.1.0/gems/railties-7.0.4/lib/rails/initializable.rb:32:in `run'
# ./vendor/bundle/ruby/3.1.0/gems/railties-7.0.4/lib/rails/initializable.rb:61:in `block in run_initializers'
# ./vendor/bundle/ruby/3.1.0/gems/railties-7.0.4/lib/rails/initializable.rb:60:in `run_initializers'
# ./vendor/bundle/ruby/3.1.0/gems/railties-7.0.4/lib/rails/application.rb:372:in `initialize!'
# ./config/environment.rb:5:in `<top (required)>'
I think:
Could it be that 1 gem version or 1 configuration is not suitable, causing it to fail?

Answer 1

I am not sure what is that for, your controller is reloadable because it is in app/controllers, like any other Ruby file in those directories.
That gem has not had activity for years. I'd suggest that you reopen WebsocketRails::BaseController in an initializer, define a dummy unloadable class method in it that does nothing, and see if your controllers reload as expected.