Production.log restituisce un errore "No method" e Discourse non funziona

Supporto
1

Ciao.

Abbiamo migrato il nostro Discourse su un nuovo server (Ubuntu 18.04 LTS invece di 16.04). Tuttavia, la nuova istanza restituisce un errore 500. Nei log di produzione ho visto questo messaggio:

NoMethodError (metodo suppress_from_latest non definito per #Category:0x00007fe51548abf0)
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activemodel-5.2.3/lib/active_model/attribute_methods.rb:430:in `method_missing’

La modalità sicura non funziona. Anche il rebuild non funziona.

Grazie per l’aiuto.

2

Puoi condividere l’intero backtrace? Sembra che si tratti di un plugin incompatibile e obsoleto che deve essere rimosso.

GitHub - discourse/plugin_discourse_dynamic_sidebar · GitHub è un plugin noto per essere difettoso e causa tale errore.

3

Ciao,

Abbiamo solo tre plugin:
- git clone GitHub - discourse/discourse-spoiler-alert: A plugin for discourse to hide spoilers behind the spoiler-alert jQuery plugin · GitHub
- git clone GitHub - discourse/discourse-cakeday: Show a birthday cake emoji beside the names of members on their join anniversary, or their actual birthday -- and a browsable directory of upcoming anniversaries / birthdays. · GitHub
- git clone GitHub - discourse/discourse-adplugin: Official Discourse Advertising Plugin. Install & Start Serving Ads on Your Discourse Forum · GitHub

Ma penso che, se il problema fosse causato dai plugin, il sito dovrebbe funzionare in modalità sicura. Mi sbaglio?

4

Sì, hai torto. La modalità sicura influisce solo sull’app del front-end (JS + CSS) e non ha nulla a che fare con Ruby.

Come ho detto nella mia risposta precedente

5

Il file production.log online contiene queste righe:

Started GET "/" for 85.110.58.198 at 2019-12-04 15:32:50 +0000
Processing by ListController#new as HTML
Completed 500 Internal Server Error in 1041ms (ActiveRecord: 0.0ms)
NoMethodError (undefined method `suppress_from_latest' for #<Category:0x00007fcdf480a1a0>)
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activemodel-5.2.3/lib/active_model/attribute_methods.rb:430:in `method_missing'
Started GET "/service-worker-29f380effd40cdaa98cfa88ea74b0c66ba6ca6c901f666253c7592d49fa5e7d4.js" for 85.110.58.198 at 2019-12-04 15:32:53 +0000
ActionController::RoutingError (No route matches [GET] "/service-worker-29f380effd40cdaa98cfa88ea74b0c66ba6ca6c901f666253c7592d49fa5e7d4.js")
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-5.2.3/lib/action_dispatch/middleware/debug_exceptions.rb:65:in `call'
Started GET "/" for 85.110.58.198 at 2019-12-04 15:32:53 +0000
Processing by ListController#new as HTML
  Rendered exceptions/_not_found_topics.html.erb (139.8ms)
  Rendering exceptions/not_found.html.erb within layouts/no_ember
  Rendered exceptions/not_found.html.erb within layouts/no_ember (1.3ms)
  Rendered layouts/_head.html.erb (56.4ms)
  Rendered common/_discourse_stylesheet.html.erb (131.3ms)
  Rendered application/_header.html.erb (6.5ms)
  Rendering html template
  Rendered html template (0.0ms)
Completed 500 Internal Server Error in 502ms (ActiveRecord: 0.0ms)
NoMethodError (undefined method `suppress_from_latest' for #<Category:0x00007fcdf4b996e0>)
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activemodel-5.2.3/lib/active_model/attribute_methods.rb:430:in `method_missing'
6

hai eseguito

cd /var/discourse
git pull
./launcher rebuild app
7

Non ho provato a fare git pull perché è stata una nuova installazione.

8

Hi,

We’re also receiving this error. We installed new plugins to our forum and then received these errors once the forum booted. None of the plugins we installed referenced the method in the error and we also tested these plugins on a test environment without any issues.

EDIT: As of 2:29 PM GMT, we have managed to get our forum back up and running - our team is looking into the root cause.

Error 1
Info:

NoMethodError (undefined method `suppress_from_latest' for #<Category:0x00007f425225a2b0>)
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activemodel-6.0.1/lib/active_model/attribute_methods.rb:431:in `method_missing'

Backtrace:

/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activemodel-6.0.1/lib/active_model/attribute_methods.rb:431:in `method_missing'
/var/www/discourse/app/models/site.rb:78:in `block in suppressed_from_latest_category_ids'
/var/www/discourse/app/models/site.rb:78:in `select'
/var/www/discourse/app/models/site.rb:78:in `suppressed_from_latest_category_ids'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/active_model_serializers-0.8.4/lib/active_model/serializer.rb:99:in `block in attribute'
(eval):15:in `_fast_attributes'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/active_model_serializers-0.8.4/lib/active_model/serializer.rb:468:in `rescue in attributes'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/active_model_serializers-0.8.4/lib/active_model/serializer.rb:455:in `attributes'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/active_model_serializers-0.8.4/lib/active_model/serializer.rb:480:in `_serializable_hash'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/active_model_serializers-0.8.4/lib/active_model/serializer.rb:359:in `serializable_hash'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/active_model_serializers-0.8.4/lib/active_model/serializer.rb:347:in `as_json'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/json/encoding.rb:22:in `encode'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/json/encoding.rb:22:in `encode'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/core_ext/object/json.rb:42:in `to_json'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/active_model_serializers-0.8.4/lib/active_model/serializer.rb:331:in `to_json'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/multi_json-1.13.1/lib/multi_json/adapters/oj.rb:40:in `dump'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/multi_json-1.13.1/lib/multi_json/adapters/oj.rb:40:in `dump'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/multi_json-1.13.1/lib/multi_json/adapter.rb:25:in `dump'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/multi_json-1.13.1/lib/multi_json.rb:139:in `dump'
/var/www/discourse/app/models/site.rb:118:in `json_for'
/var/www/discourse/app/controllers/application_controller.rb:518:in `preload_anonymous_data'
/var/www/discourse/app/controllers/application_controller.rb:342:in `preload_json'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/callbacks.rb:429:in `block in make_lambda'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/callbacks.rb:201:in `block (2 levels) in halting'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/abstract_controller/callbacks.rb:34:in `block (2 levels) in <module:Callbacks>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/callbacks.rb:202:in `block in halting'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/callbacks.rb:514:in `block in invoke_before'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/callbacks.rb:514:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/callbacks.rb:514:in `invoke_before'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/callbacks.rb:134:in `run_callbacks'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/abstract_controller/callbacks.rb:41:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_controller/metal/rescue.rb:22:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_controller/metal/instrumentation.rb:33:in `block in process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/notifications.rb:180:in `block in instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/notifications/instrumenter.rb:24:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/notifications.rb:180:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_controller/metal/instrumentation.rb:32:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_controller/metal/params_wrapper.rb:245:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/railties/controller_runtime.rb:27:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/abstract_controller/base.rb:136:in `process'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionview-6.0.1/lib/action_view/rendering.rb:39:in `process'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-mini-profiler-1.1.3/lib/mini_profiler/profiling_methods.rb:78:in `block in profile_method'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_controller/metal.rb:191:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_controller/metal.rb:252:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/routing/route_set.rb:51:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/routing/route_set.rb:33:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/journey/router.rb:49:in `block in serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/journey/router.rb:32:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/journey/router.rb:32:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/routing/route_set.rb:837:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-protection-2.0.7/lib/rack/protection/frame_options.rb:31:in `call'
/var/www/discourse/lib/middleware/omniauth_bypass_middleware.rb:68:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/tempfile_reaper.rb:15:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/conditional_get.rb:25:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/head.rb:12:in `call'
/var/www/discourse/lib/content_security_policy/middleware.rb:12:in `call'
/var/www/discourse/lib/middleware/anonymous_cache.rb:272:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/session/abstract/id.rb:232:in `context'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/session/abstract/id.rb:226:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/cookies.rb:648:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/callbacks.rb:27:in `block in call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/callbacks.rb:101:in `run_callbacks'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/callbacks.rb:26:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/actionable_exceptions.rb:17:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/debug_exceptions.rb:32:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/logster-2.4.1/lib/logster/middleware/reporter.rb:43:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.1/lib/rails/rack/logger.rb:38:in `call_app'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.1/lib/rails/rack/logger.rb:28:in `call'
/var/www/discourse/config/initializers/100-quiet_logger.rb:18:in `call'
/var/www/discourse/config/initializers/100-silence_logger.rb:31:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/request_id.rb:27:in `call'
/var/www/discourse/lib/middleware/enforce_hostname.rb:17:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/method_override.rb:22:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/executor.rb:14:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/sendfile.rb:111:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/host_authorization.rb:77:in `call'
/var/www/discourse/plugins/discourse-prometheus/lib/middleware/metrics.rb:17:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-mini-profiler-1.1.3/lib/mini_profiler/profiler.rb:184:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/message_bus-2.2.3/lib/message_bus/rack/middleware.rb:57:in `call'
/var/www/discourse/lib/middleware/request_tracker.rb:176:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.1/lib/rails/engine.rb:526:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.1/lib/rails/railtie.rb:190:in `public_send'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.1/lib/rails/railtie.rb:190:in `method_missing'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/urlmap.rb:68:in `block in call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/urlmap.rb:53:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/urlmap.rb:53:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.5.1/lib/unicorn/http_server.rb:605:in `process_client'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.5.1/lib/unicorn/http_server.rb:700:in `worker_loop'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.5.1/lib/unicorn/http_server.rb:548:in `spawn_missing_workers'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.5.1/lib/unicorn/http_server.rb:144:in `start'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.5.1/bin/unicorn:128:in `<top (required)>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/bin/unicorn:23:in `load'
/var/www/discourse/vendor/bundle/ruby/2.6.0/bin/unicorn:23:in `<main>'

Error 2
Info:

ActiveRecord::StatementInvalid (PG::UndefinedColumn: ERROR:  column categories.suppress_from_latest does not exist
LINE 1: ...t_top_period", "categories"."mailinglist_mirror", "categorie...
                                                             ^
)
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-mini-profiler-1.1.3/lib/patches/db/pg.rb:69:in `async_exec_params'

Backtrace:

/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-mini-profiler-1.1.3/lib/patches/db/pg.rb:69:in `async_exec_params'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-mini-profiler-1.1.3/lib/patches/db/pg.rb:69:in `exec_params'
(eval):105:in `exec_params'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:672:in `block (2 levels) in exec_no_cache'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/dependencies/interlock.rb:48:in `block in permit_concurrent_loads'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/concurrency/share_lock.rb:187:in `yield_shares'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/dependencies/interlock.rb:47:in `permit_concurrent_loads'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:671:in `block in exec_no_cache'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/connection_adapters/abstract_adapter.rb:718:in `block (2 levels) in log'
/usr/local/lib/ruby/2.6.0/monitor.rb:235:in `mon_synchronize'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/connection_adapters/abstract_adapter.rb:717:in `block in log'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/notifications/instrumenter.rb:24:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/connection_adapters/abstract_adapter.rb:708:in `log'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:670:in `exec_no_cache'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:651:in `execute_and_clear'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:98:in `exec_query'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/connection_adapters/abstract/database_statements.rb:487:in `select'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/connection_adapters/abstract/database_statements.rb:70:in `select_all'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/connection_adapters/abstract/query_cache.rb:105:in `block in select_all'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/connection_adapters/abstract/query_cache.rb:123:in `block in cache_sql'
/usr/local/lib/ruby/2.6.0/monitor.rb:235:in `mon_synchronize'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/connection_adapters/abstract/query_cache.rb:114:in `cache_sql'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/connection_adapters/abstract/query_cache.rb:105:in `select_all'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/querying.rb:46:in `find_by_sql'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/statement_cache.rb:134:in `execute'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/associations/association.rb:218:in `find_target'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/associations/singular_association.rb:39:in `find_target'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/associations/association.rb:161:in `load_target'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/associations/association.rb:66:in `reload'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/associations/singular_association.rb:9:in `reader'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/associations/builder/association.rb:100:in `parent_category'
/var/www/discourse/app/models/category.rb:820:in `slug_path'
/var/www/discourse/app/controllers/tags_controller.rb:333:in `page_params'
/var/www/discourse/app/controllers/tags_controller.rb:346:in `next_page_params'
/var/www/discourse/app/controllers/tags_controller.rb:376:in `construct_url_with'
/var/www/discourse/app/controllers/tags_controller.rb:83:in `block (2 levels) in <class:TagsController>'
/var/www/discourse/app/controllers/tags_controller.rb:103:in `show'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/abstract_controller/base.rb:196:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_controller/metal/rendering.rb:30:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/abstract_controller/callbacks.rb:42:in `block in process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/callbacks.rb:135:in `run_callbacks'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/abstract_controller/callbacks.rb:41:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_controller/metal/rescue.rb:22:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_controller/metal/instrumentation.rb:33:in `block in process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/notifications.rb:180:in `block in instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/notifications/instrumenter.rb:24:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/notifications.rb:180:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_controller/metal/instrumentation.rb:32:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_controller/metal/params_wrapper.rb:245:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.1/lib/active_record/railties/controller_runtime.rb:27:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/abstract_controller/base.rb:136:in `process'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionview-6.0.1/lib/action_view/rendering.rb:39:in `process'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-mini-profiler-1.1.3/lib/mini_profiler/profiling_methods.rb:78:in `block in profile_method'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_controller/metal.rb:191:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_controller/metal.rb:252:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/routing/route_set.rb:51:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/routing/route_set.rb:33:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/journey/router.rb:49:in `block in serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/journey/router.rb:32:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/journey/router.rb:32:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/routing/route_set.rb:837:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-protection-2.0.7/lib/rack/protection/frame_options.rb:31:in `call'
/var/www/discourse/lib/middleware/omniauth_bypass_middleware.rb:68:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/tempfile_reaper.rb:15:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/conditional_get.rb:25:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/head.rb:12:in `call'
/var/www/discourse/lib/content_security_policy/middleware.rb:12:in `call'
/var/www/discourse/lib/middleware/anonymous_cache.rb:272:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/session/abstract/id.rb:232:in `context'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/session/abstract/id.rb:226:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/cookies.rb:648:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/callbacks.rb:27:in `block in call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/callbacks.rb:101:in `run_callbacks'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/callbacks.rb:26:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/actionable_exceptions.rb:17:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/debug_exceptions.rb:32:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/logster-2.4.1/lib/logster/middleware/reporter.rb:43:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.1/lib/rails/rack/logger.rb:38:in `call_app'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.1/lib/rails/rack/logger.rb:28:in `call'
/var/www/discourse/config/initializers/100-quiet_logger.rb:18:in `call'
/var/www/discourse/config/initializers/100-silence_logger.rb:31:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/request_id.rb:27:in `call'
/var/www/discourse/lib/middleware/enforce_hostname.rb:17:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/method_override.rb:22:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/executor.rb:14:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/sendfile.rb:111:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.1/lib/action_dispatch/middleware/host_authorization.rb:77:in `call'
/var/www/discourse/plugins/discourse-prometheus/lib/middleware/metrics.rb:17:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-mini-profiler-1.1.3/lib/mini_profiler/profiler.rb:184:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/message_bus-2.2.3/lib/message_bus/rack/middleware.rb:57:in `call'
/var/www/discourse/lib/middleware/request_tracker.rb:176:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.1/lib/rails/engine.rb:526:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.1/lib/rails/railtie.rb:190:in `public_send'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.1/lib/rails/railtie.rb:190:in `method_missing'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/urlmap.rb:68:in `block in call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/urlmap.rb:53:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.0.7/lib/rack/urlmap.rb:53:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.5.1/lib/unicorn/http_server.rb:605:in `process_client'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.5.1/lib/unicorn/http_server.rb:700:in `worker_loop'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.5.1/lib/unicorn/http_server.rb:548:in `spawn_missing_workers'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.5.1/lib/unicorn/http_server.rb:144:in `start'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.5.1/bin/unicorn:128:in `<top (required)>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/bin/unicorn:23:in `load'
/var/www/discourse/vendor/bundle/ruby/2.6.0/bin/unicorn:23:in `<main>'
9

Ciao, ho trovato il problema. Il nostro vecchio app.yml aveva version: stable, ma la nuova istanza non riesce a riconoscere version: stable. Quando l’ho commentato, l’installazione nuova è partita.

Grazie a tutti..