Can't find task after :updating

[sjf-control]

Below is the contents of lib/capistrano/tasks/load_seeds.rake.
If I change the 'after :updating' line to 'before :updating', the task is executed at the proper time. If run as shown, it generates "Task: load_seeds not found". See the dump below task listing.

Sure would like to know what the problem is. Thanks!
Capistrano Version: 3.11.2 (Rake Version: 12.3.3)

namespace :deploy do
  namespace :check do
    desc "Execute rake db:seed"
    after :updating, :load_seeds do
      on roles(:app), in: :sequence do
        puts "\n=== Seeding Database ===\n"
#     execute :rake, 'db:seed'
      end
    end
  end
end

cap aborted!
ArgumentError: Task :load_seeds not found
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/capistrano-3.11.2/lib/capistrano/dsl/task_enhancements.rb:15:in `block in after'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/task.rb:273:in `block in execute'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/task.rb:273:in `each'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/task.rb:273:in `execute'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/airbrussh-1.4.0/lib/airbrussh/rake/context.rb:61:in `execute'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/task.rb:214:in `block in invoke_with_call_chain'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/2.6.0/monitor.rb:230:in `mon_synchronize'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/task.rb:194:in `invoke_with_call_chain'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/task.rb:183:in `invoke'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/capistrano-3.11.2/lib/capistrano/dsl.rb:26:in `invoke'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/capistrano-3.11.2/lib/capistrano/tasks/framework.rake:64:in `block (2 levels) in <top (required)>'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/capistrano-3.11.2/lib/capistrano/tasks/framework.rake:63:in `each'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/capistrano-3.11.2/lib/capistrano/tasks/framework.rake:63:in `block in <top (required)>'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/task.rb:273:in `block in execute'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/task.rb:273:in `each'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/task.rb:273:in `execute'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/airbrussh-1.4.0/lib/airbrussh/rake/context.rb:61:in `execute'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/task.rb:214:in `block in invoke_with_call_chain'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/2.6.0/monitor.rb:230:in `mon_synchronize'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/task.rb:194:in `invoke_with_call_chain'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/task.rb:183:in `invoke'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/application.rb:160:in `invoke_task'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/application.rb:116:in `block (2 levels) in top_level'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/application.rb:116:in `each'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/application.rb:116:in `block in top_level'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/application.rb:125:in `run_with_threads'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/application.rb:110:in `top_level'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/application.rb:83:in `block in run'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/application.rb:186:in `standard_exception_handling'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/rake-12.3.3/lib/rake/application.rb:80:in `run'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/capistrano-3.11.2/lib/capistrano/application.rb:14:in `run'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/capistrano-3.11.2/bin/cap:3:in `<top (required)>'
/Users/sjf/.rbenv/versions/2.6.2/bin/cap:23:in `load'
/Users/sjf/.rbenv/versions/2.6.2/bin/cap:23:in `<top (required)>'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/site_ruby/2.6.0/bundler/cli/exec.rb:74:in `load'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/site_ruby/2.6.0/bundler/cli/exec.rb:74:in `kernel_load'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/site_ruby/2.6.0/bundler/cli/exec.rb:28:in `run'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/site_ruby/2.6.0/bundler/cli.rb:463:in `exec'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/site_ruby/2.6.0/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/site_ruby/2.6.0/bundler/vendor/thor/lib/thor/invocation.rb:126:in `invoke_command'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/site_ruby/2.6.0/bundler/vendor/thor/lib/thor.rb:387:in `dispatch'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/site_ruby/2.6.0/bundler/cli.rb:27:in `dispatch'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/site_ruby/2.6.0/bundler/vendor/thor/lib/thor/base.rb:466:in `start'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/site_ruby/2.6.0/bundler/cli.rb:18:in `start'
/Users/sjf/.rbenv/versions/2.6.2/bin/bundle:30:in `block in <main>'
/Users/sjf/.rbenv/versions/2.6.2/lib/ruby/site_ruby/2.6.0/bundler/friendly_errors.rb:124:in `with_friendly_errors'
/Users/sjf/.rbenv/versions/2.6.2/bin/bundle:22:in `<main>'
Tasks: TOP => deploy:updating
The deploy has failed with an error: Task :load_seeds not found
** Invoke deploy:failed (first_time)
** Execute deploy:failed

[ikari7789]

You haven't defined any task.

You'd want to write something like this:

namespace :deploy do
  desc 'Execute artisan db:seed'
  task :load_seeds do
    Rake::Task['laravel:artisan'].invoke('db:seed')
  end

  after 'deploy:updating', 'deploy:load_seeds'
end