ruby 3.0.0: undefined method `arity' for

[clwy-cn]

This error is only in ruby 3.0.0 if I use ruby 2.6.6 or 2.7.2，it works fine.

My Rails version is 6.1.0

This code is causing the problem：

acts_as_nested_set

undefined method `arity' for {:class_name=>"Guide::Page", :foreign_key=>"parent_id", :primary_key=>"id", :counter_cache=>:children_count, :inverse_of=>:children, :polymorphic=>false, :touch=>false, :optional=>true}:Hash

[parndt]

Does it work properly if you use the repo version?

gem 'awesome_nested_set', github: 'collectiveidea/awesome_nested_at', branch: 'master'

[parndt]

Alternatively, those changes are now available using version 3.3.0:

gem 'awesome_nested_set', '~> 3.3.0'

[damianlegawiec]

This is fixed with 3.3.x , thank you @parndt 🙏

[parndt]

Thanks to @krisdigital 🙇