In Rails4 Error

[james70s]

ActionView::Template::Error (undefined local variable or method `accessible_attributes' for #Class:0x007ffc754c4c48):

activerecord (4.0.0) lib/active_record/dynamic_matchers.rb:22:in method_missing' nested_set (1.7.1) lib/nested_set/base.rb:81:inacts_as_nested_set'

          if accessible_attributes.blank?   # error
            attr_protected left_column_name.intern, right_column_name.intern
          end

[skyeagle]

I would suggest you to move on awesome_nested_set gem. The maintenance of the gem has stopped.