未初始化常量 ActiveRecord::Raltie::ActiveRecord

Question

在从 Ruby 2.6.6 升级到 Ruby 3.1.3 以及从 Rails 5.2.6 升级到 Rails 6.0.6 时，我确保遵循并合并了这两个 Rails 版本之间的所有更改。 我不确定为什么会收到以下错误。

mw@2981eebea820:/workspaces/mw$ bundle exec rspec spec
DEPRECATION WARNING: Logger don't need to call #after_initialize directly anymore. It will be deprecated without replacement in Rails 6.1. (called from new at /workspaces/mw/config/application.rb:53)

An error occurred while loading ./spec/controllers/basic_controller_spec.rb.
Failure/Error: require 'rspec/rails'

NameError:
  uninitialized constant ActiveRecord::Railtie::ActiveRecord

          include ActiveRecord::Railties::ControllerRuntime
                  ^^^^^^^^^^^^
# /usr/local/bundle/gems/activerecord-6.0.6/lib/active_record/railtie.rb:209:in `block (2 levels) in <class:Railtie>'
# /usr/local/bundle/gems/activesupport-6.0.6/lib/active_support/lazy_load_hooks.rb:71:in `class_eval'
# /usr/local/bundle/gems/activesupport-6.0.6/lib/active_support/lazy_load_hooks.rb:71:in `block in execute_hook'
# /usr/local/bundle/gems/activesupport-6.0.6/lib/active_support/lazy_load_hooks.rb:61:in `with_execution_control'
# /usr/local/bundle/gems/activesupport-6.0.6/lib/active_support/lazy_load_hooks.rb:66:in `execute_hook'
# /usr/local/bundle/gems/activesupport-6.0.6/lib/active_support/lazy_load_hooks.rb:52:in `block in run_load_hooks'
# /usr/local/bundle/gems/activesupport-6.0.6/lib/active_support/lazy_load_hooks.rb:51:in `each'
# /usr/local/bundle/gems/activesupport-6.0.6/lib/active_support/lazy_load_hooks.rb:51:in `run_load_hooks'
# /usr/local/bundle/gems/actionpack-6.0.6/lib/action_controller/base.rb:269:in `<class:Base>'
# /usr/local/bundle/gems/actionpack-6.0.6/lib/action_controller/base.rb:166:in `<module:ActionController>'
# /usr/local/bundle/gems/actionpack-6.0.6/lib/action_controller/base.rb:7:in `<main>'
# /usr/local/bundle/gems/bootsnap-1.15.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
# /usr/local/bundle/gems/bootsnap-1.15.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
# /usr/local/bundle/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require'
# /usr/local/bundle/gems/zeitwerk-2.6.6/lib/zeitwerk/kernel.rb:38:in `require'
# /usr/local/bundle/gems/actionview-6.0.6/lib/action_view/test_case.rb:13:in `<class:TestCase>'
# /usr/local/bundle/gems/actionview-6.0.6/lib/action_view/test_case.rb:12:in `<module:ActionView>'
# /usr/local/bundle/gems/actionview-6.0.6/lib/action_view/test_case.rb:10:in `<main>'
# /usr/local/bundle/gems/bootsnap-1.15.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
# /usr/local/bundle/gems/bootsnap-1.15.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
# /usr/local/bundle/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require'
# /usr/local/bundle/gems/zeitwerk-2.6.6/lib/zeitwerk/kernel.rb:38:in `require'
# /usr/local/bundle/gems/bootsnap-1.15.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
# /usr/local/bundle/gems/bootsnap-1.15.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
# /usr/local/bundle/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require'
# /usr/local/bundle/gems/zeitwerk-2.6.6/lib/zeitwerk/kernel.rb:38:in `require'
# /usr/local/bundle/gems/bootsnap-1.15.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
# /usr/local/bundle/gems/bootsnap-1.15.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
# /usr/local/bundle/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require'
# /usr/local/bundle/gems/zeitwerk-2.6.6/lib/zeitwerk/kernel.rb:38:in `require'
# /usr/local/bundle/gems/bootsnap-1.15.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
# /usr/local/bundle/gems/bootsnap-1.15.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
# /usr/local/bundle/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require'
# /usr/local/bundle/gems/zeitwerk-2.6.6/lib/zeitwerk/kernel.rb:38:in `require'
# ./spec/spec_helper.rb:5:in `<main>'
# /usr/local/bundle/gems/bootsnap-1.15.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
# /usr/local/bundle/gems/bootsnap-1.15.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
# /usr/local/bundle/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require'
# /usr/local/bundle/gems/zeitwerk-2.6.6/lib/zeitwerk/kernel.rb:38:in `require'
# ./spec/rails_helper.rb:10:in `<top (required)>'
# ./spec/controllers/basic_controller_spec.rb:1:in `require'
# ./spec/controllers/basic_controller_spec.rb:1:in `<top (required)>'

Answer 1

你有没有在红宝石之间做出任何巨大的跳跃？ 你应该先移动到 2.7，然后当它工作正常时，你 go 到 3.0 等等。 这就是我在一次巨大的跳跃失败后所做的，我什至不知道问题出在哪里。 我向后翻滚并小幅度跳跃，一切都成功了。 我知道这不是代码解决方案，但我希望它能有所帮助。

Answer 2

因此，事实证明该项目对数据库没有任何依赖性，因此require "active_record/railtie"在 application.rb 中被删除，但在spec/rails_helper.rb中有一个显式调用，它指的是 ActiveRecord - Object.send(:remove_const, :ActiveRecord) 。 挂断电话后，它开始工作。 我不确定为什么这首先会起作用。 感谢您的帮助！