# ActionView::Template::Error undefined method `join' for nil - **Location:** app/helpers/yard_helpers.rb:105 - **Occurred at:** 2026-05-14 10:50:28 UTC ## Backtrace ### Compact Trace ``` app/helpers/yard_helpers.rb:105:in `return_tag' app/helpers/yard_helpers.rb:94:in `block in return_tags' app/helpers/yard_helpers.rb:94:in `map' app/helpers/yard_helpers.rb:94:in `return_tags' app/helpers/yard_helpers.rb:23:in `block in yard_docs' app/helpers/yard_helpers.rb:14:in `each' app/helpers/yard_helpers.rb:14:in `map' app/helpers/yard_helpers.rb:14:in `yard_docs' app/components/method_details.html.erb:11:in `call' app/views/gems/classes/show.html.erb:24:in `block (2 levels) in _app_views_gems_classes_show_html_erb___4256768924506049986_48180' app/views/gems/classes/show.html.erb:23:in `each' app/views/gems/classes/show.html.erb:23:in `block in _app_views_gems_classes_show_html_erb___4256768924506049986_48180' app/components/gems/wrapper.html.erb:89:in `call' app/views/gems/classes/show.html.erb:3:in `_app_views_gems_classes_show_html_erb___4256768924506049986_48180' vendor/ruby-3.3.0/lib/ruby/3.3.0/benchmark.rb:313:in `realtime' ``` ### Full Trace ``` /app/app/helpers/yard_helpers.rb:105:in `return_tag' /app/app/helpers/yard_helpers.rb:94:in `block in return_tags' /app/app/helpers/yard_helpers.rb:94:in `map' /app/app/helpers/yard_helpers.rb:94:in `return_tags' /app/app/helpers/yard_helpers.rb:23:in `block in yard_docs' /app/app/helpers/yard_helpers.rb:14:in `each' /app/app/helpers/yard_helpers.rb:14:in `map' /app/app/helpers/yard_helpers.rb:14:in `yard_docs' /app/app/components/method_details.html.erb:11:in `call' /app/vendor/bundle/ruby/3.3.0/gems/view_component-3.13.0/lib/view_component/compiler.rb:126:in `render_template_for' /app/vendor/bundle/ruby/3.3.0/gems/view_component-3.13.0/lib/view_component/base.rb:334:in `safe_render_template_for' /app/vendor/bundle/ruby/3.3.0/gems/view_component-3.13.0/lib/view_component/base.rb:109:in `render_in' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/helpers/rendering_helper.rb:42:in `render' /app/app/views/gems/classes/show.html.erb:24:in `block (2 levels) in _app_views_gems_classes_show_html_erb___4256768924506049986_48180' /app/app/views/gems/classes/show.html.erb:23:in `each' /app/app/views/gems/classes/show.html.erb:23:in `block in _app_views_gems_classes_show_html_erb___4256768924506049986_48180' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/helpers/capture_helper.rb:50:in `block in capture' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/buffers.rb:75:in `capture' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/helpers/capture_helper.rb:50:in `capture' /app/vendor/bundle/ruby/3.3.0/gems/view_component-3.13.0/lib/view_component/base.rb:291:in `content' /app/app/components/gems/wrapper.html.erb:89:in `call' /app/vendor/bundle/ruby/3.3.0/gems/view_component-3.13.0/lib/view_component/compiler.rb:126:in `render_template_for' /app/vendor/bundle/ruby/3.3.0/gems/view_component-3.13.0/lib/view_component/base.rb:334:in `safe_render_template_for' /app/vendor/bundle/ruby/3.3.0/gems/view_component-3.13.0/lib/view_component/base.rb:109:in `render_in' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/helpers/rendering_helper.rb:42:in `render' /app/app/views/gems/classes/show.html.erb:3:in `_app_views_gems_classes_show_html_erb___4256768924506049986_48180' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/base.rb:264:in `public_send' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/base.rb:264:in `_run' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/template.rb:261:in `block in render' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/notifications.rb:208:in `instrument' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/template.rb:549:in `instrument_render_template' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/template.rb:249:in `render' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/renderer/template_renderer.rb:66:in `block (2 levels) in render_template' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/notifications.rb:206:in `block in instrument' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/notifications/instrumenter.rb:58:in `instrument' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/notifications.rb:206:in `instrument' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/renderer/template_renderer.rb:60:in `block in render_template' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/renderer/template_renderer.rb:76:in `block in render_with_layout' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/notifications.rb:206:in `block in instrument' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/notifications/instrumenter.rb:58:in `instrument' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/notifications.rb:206:in `instrument' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/renderer/template_renderer.rb:75:in `render_with_layout' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/renderer/template_renderer.rb:59:in `render_template' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/renderer/template_renderer.rb:11:in `render' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/renderer/renderer.rb:63:in `render_template_to_object' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/renderer/renderer.rb:31:in `render_to_object' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/rendering.rb:135:in `block in _render_template' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/base.rb:291:in `in_rendering_context' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/rendering.rb:134:in `_render_template' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal/streaming.rb:256:in `_render_template' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/rendering.rb:121:in `render_to_body' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal/rendering.rb:158:in `render_to_body' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal/renderers.rb:141:in `render_to_body' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/abstract_controller/rendering.rb:27:in `render' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal/rendering.rb:139:in `render' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal/instrumentation.rb:29:in `block (2 levels) in render' /app/vendor/ruby-3.3.0/lib/ruby/3.3.0/benchmark.rb:313:in `realtime' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/core_ext/benchmark.rb:14:in `ms' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal/instrumentation.rb:29:in `block in render' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal/instrumentation.rb:98:in `cleanup_view_runtime' /app/vendor/bundle/ruby/3.3.0/gems/activerecord-7.1.3.4/lib/active_record/railties/controller_runtime.rb:39:in `cleanup_view_runtime' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal/instrumentation.rb:28:in `render' /app/vendor/bundle/ruby/3.3.0/gems/meta-tags-2.22.0/lib/meta_tags/controller_helper.rb:22:in `render' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal/implicit_render.rb:37:in `default_render' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal/basic_implicit_render.rb:7:in `send_action' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/abstract_controller/base.rb:224:in `process_action' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal/rendering.rb:165:in `process_action' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/abstract_controller/callbacks.rb:259:in `block in process_action' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/callbacks.rb:121:in `block in run_callbacks' /app/vendor/bundle/ruby/3.3.0/gems/turbo-rails-2.0.6/lib/turbo-rails.rb:24:in `with_request_id' /app/vendor/bundle/ruby/3.3.0/gems/turbo-rails-2.0.6/app/controllers/concerns/turbo/request_id_tracking.rb:10:in `turbo_tracking_request_id' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/callbacks.rb:130:in `block in run_callbacks' /app/vendor/bundle/ruby/3.3.0/gems/actiontext-7.1.3.4/lib/action_text/rendering.rb:23:in `with_renderer' /app/vendor/bundle/ruby/3.3.0/gems/actiontext-7.1.3.4/lib/action_text/engine.rb:69:in `block (4 levels) in ' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/callbacks.rb:130:in `instance_exec' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/callbacks.rb:130:in `block in run_callbacks' /app/vendor/bundle/ruby/3.3.0/gems/rorvswild-1.8.0/lib/rorvswild/plugin/action_controller.rb:29:in `around_action' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/callbacks.rb:130:in `instance_exec' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/callbacks.rb:130:in `block in run_callbacks' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/callbacks.rb:141:in `run_callbacks' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/abstract_controller/callbacks.rb:258:in `process_action' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal/rescue.rb:25:in `process_action' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal/instrumentation.rb:74:in `block in process_action' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/notifications.rb:206:in `block in instrument' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/notifications/instrumenter.rb:58:in `instrument' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/notifications.rb:206:in `instrument' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal/instrumentation.rb:73:in `process_action' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal/params_wrapper.rb:261:in `process_action' /app/vendor/bundle/ruby/3.3.0/gems/activerecord-7.1.3.4/lib/active_record/railties/controller_runtime.rb:32:in `process_action' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/abstract_controller/base.rb:160:in `process' /app/vendor/bundle/ruby/3.3.0/gems/actionview-7.1.3.4/lib/action_view/rendering.rb:40:in `process' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal.rb:227:in `dispatch' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_controller/metal.rb:309:in `dispatch' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/routing/route_set.rb:49:in `dispatch' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/routing/route_set.rb:32:in `serve' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/journey/router.rb:51:in `block in serve' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/journey/router.rb:131:in `block in find_routes' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/journey/router.rb:124:in `each' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/journey/router.rb:124:in `find_routes' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/journey/router.rb:32:in `serve' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/routing/route_set.rb:882:in `call' /app/vendor/bundle/ruby/3.3.0/gems/type_fusion-0.0.6/lib/type_fusion/rack/middleware.rb:17:in `call' /app/vendor/bundle/ruby/3.3.0/gems/rack-3.1.7/lib/rack/tempfile_reaper.rb:20:in `call' /app/vendor/bundle/ruby/3.3.0/gems/rack-3.1.7/lib/rack/etag.rb:29:in `call' /app/vendor/bundle/ruby/3.3.0/gems/rack-3.1.7/lib/rack/conditional_get.rb:31:in `call' /app/vendor/bundle/ruby/3.3.0/gems/rack-3.1.7/lib/rack/head.rb:15:in `call' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/http/permissions_policy.rb:36:in `call' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/http/content_security_policy.rb:33:in `call' /app/vendor/bundle/ruby/3.3.0/gems/rack-session-2.0.0/lib/rack/session/abstract/id.rb:272:in `context' /app/vendor/bundle/ruby/3.3.0/gems/rack-session-2.0.0/lib/rack/session/abstract/id.rb:266:in `call' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/middleware/cookies.rb:689:in `call' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/middleware/callbacks.rb:29:in `block in call' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/callbacks.rb:101:in `run_callbacks' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/middleware/callbacks.rb:28:in `call' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/middleware/debug_exceptions.rb:29:in `call' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/middleware/show_exceptions.rb:31:in `call' /app/vendor/bundle/ruby/3.3.0/gems/railties-7.1.3.4/lib/rails/rack/logger.rb:37:in `call_app' /app/vendor/bundle/ruby/3.3.0/gems/railties-7.1.3.4/lib/rails/rack/logger.rb:24:in `block in call' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/tagged_logging.rb:135:in `block in tagged' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/tagged_logging.rb:39:in `tagged' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/tagged_logging.rb:135:in `tagged' /app/vendor/bundle/ruby/3.3.0/gems/activesupport-7.1.3.4/lib/active_support/broadcast_logger.rb:240:in `method_missing' /app/vendor/bundle/ruby/3.3.0/gems/railties-7.1.3.4/lib/rails/rack/logger.rb:24:in `call' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/middleware/remote_ip.rb:92:in `call' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/middleware/request_id.rb:28:in `call' /app/vendor/bundle/ruby/3.3.0/gems/rack-3.1.7/lib/rack/method_override.rb:28:in `call' /app/vendor/bundle/ruby/3.3.0/gems/rack-3.1.7/lib/rack/runtime.rb:24:in `call' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/middleware/executor.rb:14:in `call' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/middleware/static.rb:25:in `call' /app/vendor/bundle/ruby/3.3.0/gems/rack-3.1.7/lib/rack/sendfile.rb:114:in `call' /app/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.3.4/lib/action_dispatch/middleware/ssl.rb:79:in `call' /app/vendor/bundle/ruby/3.3.0/gems/rorvswild-1.8.0/lib/rorvswild/plugin/middleware.rb:22:in `call' /app/vendor/bundle/ruby/3.3.0/gems/railties-7.1.3.4/lib/rails/engine.rb:536:in `call' /app/vendor/bundle/ruby/3.3.0/gems/puma-6.4.2/lib/puma/configuration.rb:272:in `call' /app/vendor/bundle/ruby/3.3.0/gems/puma-6.4.2/lib/puma/request.rb:100:in `block in handle_request' /app/vendor/bundle/ruby/3.3.0/gems/puma-6.4.2/lib/puma/thread_pool.rb:378:in `with_force_shutdown' /app/vendor/bundle/ruby/3.3.0/gems/puma-6.4.2/lib/puma/request.rb:99:in `handle_request' /app/vendor/bundle/ruby/3.3.0/gems/puma-6.4.2/lib/puma/server.rb:464:in `process_client' /app/vendor/bundle/ruby/3.3.0/gems/puma-6.4.2/lib/puma/server.rb:245:in `block in run' /app/vendor/bundle/ruby/3.3.0/gems/puma-6.4.2/lib/puma/thread_pool.rb:155:in `block in spawn_thread' ``` ## Request - **Name:** Gems::ClassesController#show - **Method:** GET - **URL:** https://gem.sh/gems/cybrid_api_bank_ruby/v0.124.69/classes/CybridApiBank::TransferSourceAccountBankModel - **Browser:** Chrome 133 ## Parameters ```json { "id": "CybridApiBank::TransferSourceAccountBankModel", "gem": "cybrid_api_bank_ruby", "action": "show", "version": "0.124.69", "controller": "gems/classes" } ``` ## Headers | Header | Value | |--------|-------| | Via | 2.0 heroku-router | | Host | gem.sh | | Accept | text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8 | | Server | Heroku | | Referer | https://gem.sh | | Version | HTTP/1.1 | | Sec-Ch-Ua | "Not_A Brand";v="8", "Chromium";v="133", "Google Chrome";v="133" | | User-Agent | Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36 | | X-Request-Id | 0fa8ba7a-71d8-de1d-5975-fe8b6fb00a6b | | Cache-Control | max-age=0 | | Sec-Fetch-Dest | document | | Sec-Fetch-Mode | navigate | | Sec-Fetch-Site | same-origin | | Sec-Fetch-User | ?1 | | Accept-Encoding | gzip | | Accept-Language | zh-CN,zh;q=0.9,en;q=0.8 | | X-Forwarded-For | 143.0.61.223 | | X-Request-Start | 1778755784420 | | Sec-Ch-Ua-Mobile | ?0 | | X-Forwarded-Port | 443 | | X-Forwarded-Proto | https | | Sec-Ch-Ua-Platform | "Windows" | | Upgrade-Insecure-Requests | 1 | ## Environment | Variable | Value | |----------|-------| | os | Linux 6.8.0-1053-aws | | cwd | /app | | pid | 15 | | host | web.1 | | ruby | ruby 3.3.0 (2023-12-25 revision 5124f9ac75) [x86_64-linux] | | rails | 7.1.3.4 | [View on RoRvsWild ↗](https://www.rorvswild.com/applications/136042/errors/88517237)