After following all steps in doc: Install Discourse on Ubuntu or Debian for Development I tried running server using “bin/ember-cli -u” and (“bin/ember-cli” + “rails s” in saparate terminal windows). I am getting error as: “network error” in chat window. [Screenshot from 2025-02-26 13-53-01] Do i need to running any additional command in terminal? or did i missed something?

@merefield @j.jaffeux Thanks for the help!! The root cause of this issue related to Ubuntu 20.04 ( system’s glibc (GNU C Library)). Now this sounds strange but its true. Explanation: On investigation, I found that mini_racer-0.18.0.pre1 native extensions require glibc version 2.32+. Checking on my local machine by running: ldd --version shows glibc version: 2.31. At the end, II upgraded to Ubuntu 22.04 as it ships with glibc version 2.35 and all set :rocket:

What is the backtrace and error for the 500? My suspicion is you may not have run migrations, have you?

yes I was going to say the same but it’s definitely in the steps of the doc :man_shrugging: I would recommend you to try using: Developing Discourse using a Dev Container That should be a much easier way for you to get a working dev env.

[image] Joffrey Jaffeux: but it’s definitely in the steps of the doc :man_shrugging: Actually, is it? It may exclude plugin migrations?

@Neeraj_Keriya try: LOAD_PLUGINS=1 rake db:migrate

I ran all the command from the doc and wanted to install discourse manually (not with docker) and all three DB’s are migrated successfully. checking: LOAD_PLUGINS=1 rake db:migrate

Initially, When running “bundle install”. i got issues with gem (“mini_racer”, “0.18.pre1”) so i downgrade it to ‘~> 0.6.2’. Is that can be the cause? This is the only thing i did different from document.

Maybe, once you’ve run migrations again, check for 500 and report the detail of that error from within /logs here.

Sure, will do. BTW this is what i am getting on “rails db:create” with “mini_racer”, “0.18.pre1” bin/rails aborted! LoadError: /home/developer/.rvm/gems/ruby-3.2.1@discourse/extensions/x86_64-linux/3.2.0/mini_racer-0.18.0.pre1/mini_racer_extension.so: undefined symbol: __libc_single_threaded (LoadError) /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/mini_racer-0.18.0.pre1/lib/mini_racer.rb:22:in `load' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/mini_racer-0.18.0.pre1/lib/mini_racer.rb:22:in ` ' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/bundler-2.5.18/lib/bundler/runtime.rb:60:in `require' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/bundler-2.5.18/lib/bundler/runtime.rb:60:in `block (2 levels) in require' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/bundler-2.5.18/lib/bundler/runtime.rb:55:in `each' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/bundler-2.5.18/lib/bundler/runtime.rb:55:in `block in require' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/bundler-2.5.18/lib/bundler/runtime.rb:44:in `each' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/bundler-2.5.18/lib/bundler/runtime.rb:44:in `require' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/bundler-2.5.18/lib/bundler.rb:212:in `require' /home/developer/Desktop/Workspace/learn/discourse/config/application.rb:69:in ` ' :37:in `require' :37:in `require' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/bootsnap-1.18.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require' /home/developer/Desktop/Workspace/learn/discourse/Rakefile:7:in ` ' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/railties-7.2.2.1/lib/rails/commands/rake/rake_command.rb:43:in `block in with_rake' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/railties-7.2.2.1/lib/rails/commands/rake/rake_command.rb:41:in `with_rake' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/railties-7.2.2.1/lib/rails/commands/rake/rake_command.rb:20:in `perform' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/railties-7.2.2.1/lib/rails/command.rb:156:in `invoke_rake' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/railties-7.2.2.1/lib/rails/command.rb:73:in `block in invoke' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/railties-7.2.2.1/lib/rails/command.rb:149:in `with_argv' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/railties-7.2.2.1/lib/rails/command.rb:69:in `invoke' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/railties-7.2.2.1/lib/rails/commands.rb:18:in ` ' :37:in `require' :37:in `require' /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/bootsnap-1.18.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require' bin/rails:18:in ` ' (See full trace by running task with --trace)

FYI current Ruby is something closer to 3.3.6 in Production, so switching to that version of Ruby might be a good idea. (this is why @j.jaffeux recommends the docker install as these things can be a pain in non-docker dev)

@merefield @j.jaffeux here is the logs, when i type in message box and send. Delivering messages [] to client 4c6e690d53844d29be1f7e2f38dd12d8 for user 1 (chunked) UserAuthToken Load (1.5ms) SELECT "user_auth_tokens".* FROM "user_auth_tokens" WHERE ((auth_token = 'szvLZH+BlxR8QAZaqku+p5jPKsk=' OR prev_auth_token = 'szvLZH+BlxR8QAZaqku+p5jPKsk=') AND rotated_at > '2024-12-28 12:10:59.994672') ORDER BY "user_auth_tokens"."id" ASC LIMIT 1 User Load (2.3ms) SELECT "users"."id", "users"."username", "users"."created_at", "users"."updated_at", "users"."name", "users"."last_posted_at", "users"."active", "users"."username_lower", "users"."last_seen_at", "users"."admin", "users"."last_emailed_at", "users"."trust_level", "users"."approved", "users"."approved_by_id", "users"."approved_at", "users"."previous_visit_at", "users"."suspended_at", "users"."suspended_till", "users"."date_of_birth", "users"."views", "users"."flag_level", "users"."ip_address", "users"."moderator", "users"."title", "users"."uploaded_avatar_id", "users"."locale", "users"."primary_group_id", "users"."registration_ip_address", "users"."staged", "users"."first_seen_at", "users"."silenced_till", "users"."group_locked_trust_level", "users"."manual_locked_trust_level", "users"."secure_identifier", "users"."flair_group_id", "users"."last_seen_reviewable_id", "users"."required_fields_version", "users"."seen_notification_id" FROM "users" WHERE "users"."id" = 1 LIMIT 1 (4.7ms) SELECT "groups"."id" FROM "groups" Delivering messages [] to client 4c6e690d53844d29be1f7e2f38dd12d8 for user 1 (chunked) Started POST "/presence/update" for 127.0.0.1 at 2025-02-26 17:41:02 +0530 Processing by PresenceController#update as */* Parameters: {"client_id"=>"4c6e690d53844d29be1f7e2f38dd12d8", "present_channels"=>["/chat/online", "/chat-reply/1"]} UserAuthToken Load (2.5ms) SELECT "user_auth_tokens".* FROM "user_auth_tokens" WHERE ((auth_token = 'szvLZH+BlxR8QAZaqku+p5jPKsk=' OR prev_auth_token = 'szvLZH+BlxR8QAZaqku+p5jPKsk=') AND rotated_at > '2024-12-28 12:11:02.184406') ORDER BY "user_auth_tokens"."id" ASC LIMIT 1 User Load (2.9ms) SELECT "users"."id", "users"."username", "users"."created_at", "users"."updated_at", "users"."name", "users"."last_posted_at", "users"."active", "users"."username_lower", "users"."last_seen_at", "users"."admin", "users"."last_emailed_at", "users"."trust_level", "users"."approved", "users"."approved_by_id", "users"."approved_at", "users"."previous_visit_at", "users"."suspended_at", "users"."suspended_till", "users"."date_of_birth", "users"."views", "users"."flag_level", "users"."ip_address", "users"."moderator", "users"."title", "users"."uploaded_avatar_id", "users"."locale", "users"."primary_group_id", "users"."registration_ip_address", "users"."staged", "users"."first_seen_at", "users"."silenced_till", "users"."group_locked_trust_level", "users"."manual_locked_trust_level", "users"."secure_identifier", "users"."flair_group_id", "users"."last_seen_reviewable_id", "users"."required_fields_version", "users"."seen_notification_id" FROM "users" WHERE "users"."id" = 1 LIMIT 1 UserOption Load (6.1ms) SELECT "user_options"."user_id", "user_options"."mailing_list_mode", "user_options"."email_digests", "user_options"."external_links_in_new_tab", "user_options"."enable_quoting", "user_options"."dynamic_favicon", "user_options"."automatically_unpin_topics", "user_options"."digest_after_minutes", "user_options"."auto_track_topics_after_msecs", "user_options"."new_topic_duration_minutes", "user_options"."last_redirected_to_top_at", "user_options"."email_previous_replies", "user_options"."email_in_reply_to", "user_options"."like_notification_frequency", "user_options"."mailing_list_mode_frequency", "user_options"."include_tl0_in_digests", "user_options"."notification_level_when_replying", "user_options"."theme_key_seq", "user_options"."allow_private_messages", "user_options"."homepage_id", "user_options"."theme_ids", "user_options"."hide_profile_and_presence", "user_options"."text_size_key", "user_options"."text_size_seq", "user_options"."email_level", "user_options"."email_messages_level", "user_options"."title_count_mode_key", "user_options"."enable_defer", "user_options"."timezone", "user_options"."enable_allowed_pm_users", "user_options"."dark_scheme_id", "user_options"."skip_new_user_tips", "user_options"."color_scheme_id", "user_options"."default_calendar", "user_options"."chat_enabled", "user_options"."only_chat_push_notifications", "user_options"."oldest_search_log_date", "user_options"."chat_sound", "user_options"."dismissed_channel_retention_reminder", "user_options"."dismissed_dm_retention_reminder", "user_options"."bookmark_auto_delete_preference", "user_options"."ignore_channel_wide_mention", "user_options"."chat_email_frequency", "user_options"."enable_experimental_sidebar", "user_options"."seen_popups", "user_options"."chat_header_indicator_preference", "user_options"."sidebar_link_to_filtered_list", "user_options"."sidebar_show_count_of_new_items", "user_options"."watched_precedence_over_muted", "user_options"."chat_separate_sidebar_mode", "user_options"."topics_unread_when_closed", "user_options"."show_thread_title_prompts", "user_options"."enable_smart_lists", "user_options"."hide_profile", "user_options"."hide_presence", "user_options"."chat_send_shortcut" FROM "user_options" WHERE "user_options"."user_id" = 1 LIMIT 1 (1.5ms) SELECT "group_users"."group_id" FROM "group_users" WHERE "group_users"."user_id" = 1 Chat::Channel Load (1.3ms) SELECT "chat_channels"."id", "chat_channels"."chatable_id", "chat_channels"."deleted_at", "chat_channels"."deleted_by_id", "chat_channels"."featured_in_category_id", "chat_channels"."delete_after_seconds", "chat_channels"."chatable_type", "chat_channels"."created_at", "chat_channels"."updated_at", "chat_channels"."name", "chat_channels"."description", "chat_channels"."status", "chat_channels"."user_count", "chat_channels"."auto_join_users", "chat_channels"."user_count_stale", "chat_channels"."type", "chat_channels"."slug", "chat_channels"."allow_channel_wide_mentions", "chat_channels"."messages_count", "chat_channels"."threading_enabled", "chat_channels"."last_message_id", "chat_channels"."icon_upload_id" FROM "chat_channels" WHERE "chat_channels"."deleted_at" IS NULL AND "chat_channels"."id" = 1 LIMIT 1 Chat::DirectMessage Load (1.5ms) SELECT "direct_message_channels".* FROM "direct_message_channels" WHERE "direct_message_channels"."id" = 1 LIMIT 1 (1.9ms) SELECT "users"."id" FROM "users" INNER JOIN "direct_message_users" ON "users"."id" = "direct_message_users"."user_id" WHERE "direct_message_users"."direct_message_channel_id" = 1 User Load (1.5ms) SELECT "users"."id", "users"."username", "users"."created_at", "users"."updated_at", "users"."name", "users"."last_posted_at", "users"."active", "users"."username_lower", "users"."last_seen_at", "users"."admin", "users"."last_emailed_at", "users"."trust_level", "users"."approved", "users"."approved_by_id", "users"."approved_at", "users"."previous_visit_at", "users"."suspended_at", "users"."suspended_till", "users"."date_of_birth", "users"."views", "users"."flag_level", "users"."ip_address", "users"."moderator", "users"."title", "users"."uploaded_avatar_id", "users"."locale", "users"."primary_group_id", "users"."registration_ip_address", "users"."staged", "users"."first_seen_at", "users"."silenced_till", "users"."group_locked_trust_level", "users"."manual_locked_trust_level", "users"."secure_identifier", "users"."flair_group_id", "users"."last_seen_reviewable_id", "users"."required_fields_version", "users"."seen_notification_id" FROM "users" WHERE "users"."id" = 1 UserOption Load (2.3ms) SELECT "user_options"."user_id", "user_options"."mailing_list_mode", "user_options"."email_digests", "user_options"."external_links_in_new_tab", "user_options"."enable_quoting", "user_options"."dynamic_favicon", "user_options"."automatically_unpin_topics", "user_options"."digest_after_minutes", "user_options"."auto_track_topics_after_msecs", "user_options"."new_topic_duration_minutes", "user_options"."last_redirected_to_top_at", "user_options"."email_previous_replies", "user_options"."email_in_reply_to", "user_options"."like_notification_frequency", "user_options"."mailing_list_mode_frequency", "user_options"."include_tl0_in_digests", "user_options"."notification_level_when_replying", "user_options"."theme_key_seq", "user_options"."allow_private_messages", "user_options"."homepage_id", "user_options"."theme_ids", "user_options"."hide_profile_and_presence", "user_options"."text_size_key", "user_options"."text_size_seq", "user_options"."email_level", "user_options"."email_messages_level", "user_options"."title_count_mode_key", "user_options"."enable_defer", "user_options"."timezone", "user_options"."enable_allowed_pm_users", "user_options"."dark_scheme_id", "user_options"."skip_new_user_tips", "user_options"."color_scheme_id", "user_options"."default_calendar", "user_options"."chat_enabled", "user_options"."only_chat_push_notifications", "user_options"."oldest_search_log_date", "user_options"."chat_sound", "user_options"."dismissed_channel_retention_reminder", "user_options"."dismissed_dm_retention_reminder", "user_options"."bookmark_auto_delete_preference", "user_options"."ignore_channel_wide_mention", "user_options"."chat_email_frequency", "user_options"."enable_experimental_sidebar", "user_options"."seen_popups", "user_options"."chat_header_indicator_preference", "user_options"."sidebar_link_to_filtered_list", "user_options"."sidebar_show_count_of_new_items", "user_options"."watched_precedence_over_muted", "user_options"."chat_separate_sidebar_mode", "user_options"."topics_unread_when_closed", "user_options"."show_thread_title_prompts", "user_options"."enable_smart_lists", "user_options"."hide_profile", "user_options"."hide_presence", "user_options"."chat_send_shortcut" FROM "user_options" WHERE "user_options"."user_id" = 1 Completed 200 OK in 81ms (Views: 0.4ms | ActiveRecord: 21.2ms (9 queries, 0 cached) | GC: 2.0ms) Delivering messages [{"global_id":5317,"message_id":17,"channel":"/presence/chat-reply/1","data":{"entering_users":[{"id":1,"username":"user1","name":null,"avatar_template":"/letter_avatar_proxy/v4/letter/u/5daacb/{size}.png"}]}}] to client 4c6e690d53844d29be1f7e2f38dd12d8 for user 1 (chunked) Started POST "/chat/1" for 127.0.0.1 at 2025-02-26 17:41:02 +0530 Processing by Chat::Api::ChannelMessagesController#create as */* Parameters: {"message"=>"test", "staged_id"=>"4c874e5d-0934-4baa-8104-6ff2792d83eb", "chat_channel_id"=>"1"} UserAuthToken Load (2.1ms) SELECT "user_auth_tokens".* FROM "user_auth_tokens" WHERE ((auth_token = 'szvLZH+BlxR8QAZaqku+p5jPKsk=' OR prev_auth_token = 'szvLZH+BlxR8QAZaqku+p5jPKsk=') AND rotated_at > '2024-12-28 12:11:02.500622') ORDER BY "user_auth_tokens"."id" ASC LIMIT 1 User Load (2.7ms) SELECT "users"."id", "users"."username", "users"."created_at", "users"."updated_at", "users"."name", "users"."last_posted_at", "users"."active", "users"."username_lower", "users"."last_seen_at", "users"."admin", "users"."last_emailed_at", "users"."trust_level", "users"."approved", "users"."approved_by_id", "users"."approved_at", "users"."previous_visit_at", "users"."suspended_at", "users"."suspended_till", "users"."date_of_birth", "users"."views", "users"."flag_level", "users"."ip_address", "users"."moderator", "users"."title", "users"."uploaded_avatar_id", "users"."locale", "users"."primary_group_id", "users"."registration_ip_address", "users"."staged", "users"."first_seen_at", "users"."silenced_till", "users"."group_locked_trust_level", "users"."manual_locked_trust_level", "users"."secure_identifier", "users"."flair_group_id", "users"."last_seen_reviewable_id", "users"."required_fields_version", "users"."seen_notification_id" FROM "users" WHERE "users"."id" = 1 LIMIT 1 UserOption Load (3.5ms) SELECT "user_options"."user_id", "user_options"."mailing_list_mode", "user_options"."email_digests", "user_options"."external_links_in_new_tab", "user_options"."enable_quoting", "user_options"."dynamic_favicon", "user_options"."automatically_unpin_topics", "user_options"."digest_after_minutes", "user_options"."auto_track_topics_after_msecs", "user_options"."new_topic_duration_minutes", "user_options"."last_redirected_to_top_at", "user_options"."email_previous_replies", "user_options"."email_in_reply_to", "user_options"."like_notification_frequency", "user_options"."mailing_list_mode_frequency", "user_options"."include_tl0_in_digests", "user_options"."notification_level_when_replying", "user_options"."theme_key_seq", "user_options"."allow_private_messages", "user_options"."homepage_id", "user_options"."theme_ids", "user_options"."hide_profile_and_presence", "user_options"."text_size_key", "user_options"."text_size_seq", "user_options"."email_level", "user_options"."email_messages_level", "user_options"."title_count_mode_key", "user_options"."enable_defer", "user_options"."timezone", "user_options"."enable_allowed_pm_users", "user_options"."dark_scheme_id", "user_options"."skip_new_user_tips", "user_options"."color_scheme_id", "user_options"."default_calendar", "user_options"."chat_enabled", "user_options"."only_chat_push_notifications", "user_options"."oldest_search_log_date", "user_options"."chat_sound", "user_options"."dismissed_channel_retention_reminder", "user_options"."dismissed_dm_retention_reminder", "user_options"."bookmark_auto_delete_preference", "user_options"."ignore_channel_wide_mention", "user_options"."chat_email_frequency", "user_options"."enable_experimental_sidebar", "user_options"."seen_popups", "user_options"."chat_header_indicator_preference", "user_options"."sidebar_link_to_filtered_list", "user_options"."sidebar_show_count_of_new_items", "user_options"."watched_precedence_over_muted", "user_options"."chat_separate_sidebar_mode", "user_options"."topics_unread_when_closed", "user_options"."show_thread_title_prompts", "user_options"."enable_smart_lists", "user_options"."hide_profile", "user_options"."hide_presence", "user_options"."chat_send_shortcut" FROM "user_options" WHERE "user_options"."user_id" = 1 LIMIT 1 UserRequiredFieldsVersion Maximum (1.5ms) SELECT MAX("user_required_fields_versions"."id") FROM "user_required_fields_versions" (1.2ms) SELECT "group_users"."group_id" FROM "group_users" WHERE "group_users"."user_id" = 1 Chat::Channel Load (1.2ms) SELECT "chat_channels"."id", "chat_channels"."chatable_id", "chat_channels"."deleted_at", "chat_channels"."deleted_by_id", "chat_channels"."featured_in_category_id", "chat_channels"."delete_after_seconds", "chat_channels"."chatable_type", "chat_channels"."created_at", "chat_channels"."updated_at", "chat_channels"."name", "chat_channels"."description", "chat_channels"."status", "chat_channels"."user_count", "chat_channels"."auto_join_users", "chat_channels"."user_count_stale", "chat_channels"."type", "chat_channels"."slug", "chat_channels"."allow_channel_wide_mentions", "chat_channels"."messages_count", "chat_channels"."threading_enabled", "chat_channels"."last_message_id", "chat_channels"."icon_upload_id" FROM "chat_channels" LEFT JOIN categories ON categories.id = chat_channels.chatable_id AND chat_channels.chatable_type = 'Category' WHERE "chat_channels"."deleted_at" IS NULL AND (chat_channels.id = 1 OR categories.slug = '1' OR chat_channels.slug = '1') LIMIT 1 Chat::UserChatChannelMembership Load (1.1ms) SELECT "user_chat_channel_memberships"."id", "user_chat_channel_memberships"."user_id", "user_chat_channel_memberships"."chat_channel_id", "user_chat_channel_memberships"."last_read_message_id", "user_chat_channel_memberships"."following", "user_chat_channel_memberships"."muted", "user_chat_channel_memberships"."created_at", "user_chat_channel_memberships"."updated_at", "user_chat_channel_memberships"."last_unread_mention_when_emailed_id", "user_chat_channel_memberships"."join_mode", "user_chat_channel_memberships"."last_viewed_at", "user_chat_channel_memberships"."notification_level" FROM "user_chat_channel_memberships" WHERE "user_chat_channel_memberships"."chat_channel_id" = 1 AND "user_chat_channel_memberships"."user_id" = 1 LIMIT 1 Chat::DirectMessage Load (1.1ms) SELECT "direct_message_channels".* FROM "direct_message_channels" WHERE "direct_message_channels"."id" = 1 LIMIT 1 User Count (1.1ms) SELECT COUNT(*) FROM "users" INNER JOIN "direct_message_users" ON "users"."id" = "direct_message_users"."user_id" WHERE "direct_message_users"."direct_message_channel_id" = 1 Chat::Message Load (0.8ms) SELECT "chat_messages".* FROM "chat_messages" WHERE "chat_messages"."deleted_at" IS NULL AND "chat_messages"."id" IS NULL LIMIT 1 Completed 500 Internal Server Error in 64ms (ActiveRecord: 16.4ms (10 queries, 0 cached) | GC: 1.1ms) Rendered /home/developer/.rvm/gems/ruby-3.2.1@discourse/gems/actionpack-7.2.2.1/lib/action_dispatch/middleware/templates/rescues/diagnostics.text.erb (Duration: 5.7ms | GC: 0.1ms)

Chat not working after dev install

Product Support

merefield (Robert) February 26, 2025, 12:22pm 16

This is console output, no? That’s not what I requested

What is the backtrace AND error message from /logs? (that’s a URL ie http://localhost:4200/logs)

Topic		Replies	Views
After rebuilding app, can't sign in with error 500 Bug chat	34	1958	February 6, 2024
Deactivated plugin causes Error 500 on post Product Support	16	3500	August 5, 2017
Install Discourse on macOS for development Developer Guides dev-install , how-to	102	118595	April 24, 2026
My forum stays on the loading screen "Could not find module `virtual-dom` " Self-hosting	11	1107	September 6, 2023
Mini_racer installation issues on ubuntu vagrant (OSX) Development	33	11571	August 6, 2016

Chat not working after dev install

Related topics