ActionView::Template::Error: undefined method `correct_answer' for nil:NilClass

[komagata]

View details in Rollbar: https://rollbar.com/komagata/Bootcamp/items/1192/

NoMethodError: undefined method `correct_answer' for nil:NilClass
  File "/app/app/views/api/answers/_answer.json.jbuilder", line 2, in _app_views_api_answers__answer_json_jbuilder__2870155170538785642_3706680
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/base.rb", line 247, in public_send
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/base.rb", line 247, in _run
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/template.rb", line 154, in block in render
  File "/usr/local/bundle/gems/activesupport-6.1.4.4/lib/active_support/notifications.rb", line 205, in instrument
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/template.rb", line 345, in instrument_render_template
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/template.rb", line 152, in render
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/renderer/partial_renderer.rb", line 285, in block in render_partial_template
  File "/usr/local/bundle/gems/activesupport-6.1.4.4/lib/active_support/notifications.rb", line 203, in block in instrument
  File "/usr/local/bundle/gems/activesupport-6.1.4.4/lib/active_support/notifications/instrumenter.rb", line 24, in instrument
  File "/usr/local/bundle/gems/activesupport-6.1.4.4/lib/active_support/notifications.rb", line 203, in instrument
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/renderer/partial_renderer.rb", line 280, in render_partial_template
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/renderer/partial_renderer.rb", line 271, in render
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/renderer/renderer.rb", line 81, in render_partial_to_object
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/renderer/renderer.rb", line 27, in render_to_object
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/renderer/renderer.rb", line 22, in render
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/helpers/rendering_helper.rb", line 38, in block in render
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/base.rb", line 273, in in_rendering_context
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/helpers/rendering_helper.rb", line 34, in render
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder/jbuilder_template.rb", line 180, in _render_partial
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder/jbuilder_template.rb", line 174, in _render_partial_with_options
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder/jbuilder_template.rb", line 262, in _render_explicit_partial
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder/jbuilder_template.rb", line 55, in partial!
  File "/app/app/views/api/answers/index.json.jbuilder", line 2, in block in _app_views_api_answers_index_json_jbuilder__2220108371368413535_3706640
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder.rb", line 340, in block (2 levels) in _map_collection
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder.rb", line 347, in _scope
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder.rb", line 340, in block in _map_collection
  File "/usr/local/bundle/gems/activerecord-6.1.4.4/lib/active_record/relation/delegation.rb", line 88, in each
  File "/usr/local/bundle/gems/activerecord-6.1.4.4/lib/active_record/relation/delegation.rb", line 88, in each
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder.rb", line 339, in map
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder.rb", line 339, in _map_collection
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder.rb", line 217, in array!
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder/jbuilder_template.rb", line 123, in array!
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder.rb", line 38, in block in set!
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder.rb", line 347, in _scope
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder.rb", line 38, in set!
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder/jbuilder_template.rb", line 133, in set!
  File "/usr/local/bundle/gems/jbuilder-2.11.5/lib/jbuilder.rb", line 70, in method_missing
  File "/app/app/views/api/answers/index.json.jbuilder", line 1, in _app_views_api_answers_index_json_jbuilder__2220108371368413535_3706640
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/base.rb", line 247, in public_send
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/base.rb", line 247, in _run
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/template.rb", line 154, in block in render
  File "/usr/local/bundle/gems/activesupport-6.1.4.4/lib/active_support/notifications.rb", line 205, in instrument
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/template.rb", line 345, in instrument_render_template
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/template.rb", line 152, in render
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/renderer/template_renderer.rb", line 61, in block (2 levels) in render_template
  File "/usr/local/bundle/gems/activesupport-6.1.4.4/lib/active_support/notifications.rb", line 203, in block in instrument
  File "/usr/local/bundle/gems/activesupport-6.1.4.4/lib/active_support/notifications/instrumenter.rb", line 24, in instrument
  File "/usr/local/bundle/gems/activesupport-6.1.4.4/lib/active_support/notifications.rb", line 203, in instrument
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/renderer/template_renderer.rb", line 56, in block in render_template
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/renderer/template_renderer.rb", line 75, in render_with_layout
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/renderer/template_renderer.rb", line 55, in render_template
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/renderer/template_renderer.rb", line 11, in render
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/renderer/renderer.rb", line 61, in render_template_to_object
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/renderer/renderer.rb", line 29, in render_to_object
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/rendering.rb", line 117, in block in _render_template
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/base.rb", line 273, in in_rendering_context
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/rendering.rb", line 116, in _render_template
  File "/usr/local/bundle/gems/actionpack-6.1.4.4/lib/action_controller/metal/streaming.rb", line 218, in _render_template
  File "/usr/local/bundle/gems/actionview-6.1.4.4/lib/action_view/rendering.rb", line 103, in ren