Undefined method `ruby2_keywords` for Elasticsearch::Model::Proxy::Base:Module

[qquokka]

Hi! I got a problem with elasticsearch-model gem while I was running rails console. It's been happening since I updated elasticsearch-model gem from 7.1.x to 7.2.1. My ruby version is ruby 2.6.6p146 (2020-03-31 revision 67876) [x86_64-darwin19].

Traceback (most recent call last):
	22: from bin/rails:6:in `<main>'
	21: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	20: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	19: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/railties-6.0.3.7/lib/rails/commands.rb:18:in `<main>'
	18: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/railties-6.0.3.7/lib/rails/command.rb:46:in `invoke'
	17: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/railties-6.0.3.7/lib/rails/command/base.rb:69:in `perform'
	16: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/thor-1.2.1/lib/thor.rb:392:in `dispatch'
	15: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
	14: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
	13: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/railties-6.0.3.7/lib/rails/commands/console/console_command.rb:101:in `perform'
	12: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/railties-6.0.3.7/lib/rails/command/actions.rb:14:in `require_application_and_environment!'
	11: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/railties-6.0.3.7/lib/rails/command/actions.rb:22:in `require_application!'
	10: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	 9: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	 8: from /Users/hyejin/workspace/deali/bird/config/application.rb:23:in `<main>'
	 7: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler.rb:174:in `require'
	 6: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/runtime.rb:58:in `require'
	 5: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/runtime.rb:58:in `each'
	 4: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/runtime.rb:69:in `block in require'
	 3: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/runtime.rb:69:in `each'
	 2: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/runtime.rb:74:in `block (2 levels) in require'
	 1: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:15:in `require'
/Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:15:in `require': cannot load such file -- elasticsearch-model (LoadError)
	33: from bin/rails:6:in `<main>'
	32: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	31: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	30: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/railties-6.0.3.7/lib/rails/commands.rb:18:in `<main>'
	29: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/railties-6.0.3.7/lib/rails/command.rb:46:in `invoke'
	28: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/railties-6.0.3.7/lib/rails/command/base.rb:69:in `perform'
	27: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/thor-1.2.1/lib/thor.rb:392:in `dispatch'
	26: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
	25: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
	24: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/railties-6.0.3.7/lib/rails/commands/console/console_command.rb:101:in `perform'
	23: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/railties-6.0.3.7/lib/rails/command/actions.rb:14:in `require_application_and_environment!'
	22: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/railties-6.0.3.7/lib/rails/command/actions.rb:22:in `require_application!'
	21: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	20: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	19: from /Users/hyejin/workspace/deali/bird/config/application.rb:23:in `<main>'
	18: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler.rb:174:in `require'
	17: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/runtime.rb:58:in `require'
	16: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/runtime.rb:58:in `each'
	15: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/runtime.rb:65:in `block in require'
	14: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bundler-2.1.4/lib/bundler/runtime.rb:88:in `rescue in block in require'
	13: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	12: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	11: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/elasticsearch-model-7.2.1/lib/elasticsearch/model.rb:44:in `<main>'
	10: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/activesupport-6.0.3.7/lib/active_support/dependencies.rb:324:in `require'
	 9: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/activesupport-6.0.3.7/lib/active_support/dependencies.rb:291:in `load_dependency'
	 8: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/activesupport-6.0.3.7/lib/active_support/dependencies.rb:324:in `block in require'
	 7: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require'
	 6: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	 5: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	 4: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/elasticsearch-model-7.2.1/lib/elasticsearch/model/proxy.rb:18:in `<main>'
	 3: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/elasticsearch-model-7.2.1/lib/elasticsearch/model/proxy.rb:19:in `<module:Elasticsearch>'
	 2: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/elasticsearch-model-7.2.1/lib/elasticsearch/model/proxy.rb:47:in `<module:Model>'
	 1: from /Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/elasticsearch-model-7.2.1/lib/elasticsearch/model/proxy.rb:111:in `<module:Proxy>'
/Users/hyejin/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/elasticsearch-model-7.2.1/lib/elasticsearch/model/proxy.rb:124:in `<module:Base>': undefined method `ruby2_keywords' for Elasticsearch::Model::Proxy::Base:Module (NoMethodError)

[habib-ali]

Is there any update on this bug ?
I am facing same issue with ruby-2.6.7 and elasticsearch-model-7.2.1/lib/elasticsearch/model/proxy.rb

[habib-ali]

Looking at the link present in the line

elasticsearch-rails/elasticsearch-model/lib/elasticsearch/model/proxy.rb

Line 121 in 8e0526c

# Delegate methods to `@target`. As per [the Ruby 3.0 explanation for keyword arguments](https://www.ruby-lang.org/en/news/2019/12/12/separation-of-positional-and-keyword-arguments-in-ruby-3-0/), the only way to work on Ruby <2.7, and 2.7, and 3.0+ is to use `ruby2_keywords`.

I found at that using gem 'ruby2_keywords', '~> 0.0.5' in the gemfile solves this issue

[vijay-zensar]

I am facing this error while upgrading rails version 4.2 to 5.2.7. I have ruby version 2.6.9, Can anyone help me fix this issue?