Bug: uninitialized constant SiteCategorySerializer

I’m seeing the following when trying to re-build Discourse with the voting plugin:

NameError: uninitialized constant SiteCategorySerializer
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/inflector/methods.rb:283:in `const_get'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/inflector/methods.rb:283:in `block in constantize'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/inflector/methods.rb:281:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/inflector/methods.rb:281:in `inject'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/inflector/methods.rb:281:in `constantize'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/core_ext/string/inflections.rb:68:in `constantize'
/var/www/discourse/lib/plugin/instance.rb:93:in `block in add_to_serializer'
/var/www/discourse/lib/plugin/instance.rb:699:in `reloadable_patch'
/var/www/discourse/lib/plugin/instance.rb:92:in `add_to_serializer'
/var/www/discourse/plugins/discourse-voting/plugin.rb:82:in `block (2 levels) in activate!'
/var/www/discourse/plugins/discourse-voting/plugin.rb:81:in `each'
/var/www/discourse/plugins/discourse-voting/plugin.rb:81:in `block in activate!'
/var/www/discourse/lib/plugin/instance.rb:328:in `block in notify_after_initialize'
/var/www/discourse/lib/plugin/instance.rb:326:in `each'
/var/www/discourse/lib/plugin/instance.rb:326:in `notify_after_initialize'
/var/www/discourse/config/application.rb:292:in `each'
/var/www/discourse/config/application.rb:292:in `block in <class:Application>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/lazy_load_hooks.rb:69:in `block in execute_hook'

Seems related to some recent refactoring in the plugin:

The last known “good” version I have tried with is the following:

I’m running Discourse version 2.3.2.

1 Like

So you are saying voting plugin is no longer compatible with 2.3 (stable)?

2 Likes

Very likely, we changed some internal interfaces, we should be able to make it compatible though.

2 Likes

I just hit this today upgrading stable.
In case it is helpful to anyone or someone can suggest a better way, this is my temporary solution:


hooks:
  after_code:
    - exec:
        cd: $home/plugins
        cmd:
          - mkdir -p plugins
          - git clone https://github.com/discourse/discourse-voting.git
          - cd discourse-voting && git reset --hard 9b4f233b9d33a946f626597aaf3863d2305b8809 && cd ..
1 Like

This is now fixed per:

and

Core change was backported to stable.

6 Likes

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