我從 ruby?? 2.7.1 更新到 3.1.1，然后洗掉 Gemfile.lock 并運行bundle update（它在 dev 分支上，所以如果這是一個壞主意，我可以把它扔掉，我只是想看看它是否會作業）。
bundle update成功，但是當我啟動服務器時：
rails s
=> Booting Puma
=> Rails 7.0.2.2 application starting in development
=> Run `bin/rails server --help` for more startup options
Exiting
/Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:430:in `visit_Psych_Nodes_Alias': Unknown alias: default (Psych::BadAlias)
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/visitor.rb:30:in `visit'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/visitor.rb:6:in `accept'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:35:in `accept'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:345:in `block in revive_hash'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:343:in `each'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:343:in `each_slice'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:343:in `revive_hash'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:167:in `visit_Psych_Nodes_Mapping'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/visitor.rb:30:in `visit'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/visitor.rb:6:in `accept'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:35:in `accept'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:345:in `block in revive_hash'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:343:in `each'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:343:in `each_slice'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:343:in `revive_hash'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:167:in `visit_Psych_Nodes_Mapping'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/visitor.rb:30:in `visit'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/visitor.rb:6:in `accept'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:35:in `accept'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:318:in `visit_Psych_Nodes_Document'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/visitor.rb:30:in `visit'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/visitor.rb:6:in `accept'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych/visitors/to_ruby.rb:35:in `accept'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych.rb:335:in `safe_load'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/psych.rb:370:in `load'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/webpacker-4.3.0/lib/webpacker/env.rb:30:in `available_environments'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/webpacker-4.3.0/lib/webpacker/env.rb:21:in `current'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/webpacker-4.3.0/lib/webpacker/env.rb:15:in `inquire'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/webpacker-4.3.0/lib/webpacker/env.rb:7:in `inquire'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/webpacker-4.3.0/lib/webpacker/instance.rb:11:in `env'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/webpacker-4.3.0/lib/webpacker/instance.rb:18:in `config'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/webpacker-4.3.0/lib/webpacker.rb:34:in `config'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/webpacker-4.3.0/lib/webpacker/railtie.rb:32:in `block in <class:Engine>'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.2.2/lib/rails/initializable.rb:32:in `instance_exec'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.2.2/lib/rails/initializable.rb:32:in `run'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.2.2/lib/rails/initializable.rb:61:in `block in run_initializers'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/tsort.rb:228:in `block in tsort_each'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/tsort.rb:431:in `each_strongly_connected_component_from'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/tsort.rb:349:in `block in each_strongly_connected_component'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/tsort.rb:347:in `each'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/tsort.rb:347:in `call'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/tsort.rb:347:in `each_strongly_connected_component'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/tsort.rb:226:in `tsort_each'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/3.1.0/tsort.rb:205:in `tsort_each'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.2.2/lib/rails/initializable.rb:60:in `run_initializers'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.2.2/lib/rails/application.rb:372:in `initialize!'
from /Users/st/rails/hangswith/config/environment.rb:5:in `<main>'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/bootsnap-1.10.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/bootsnap-1.10.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/zeitwerk-2.5.4/lib/zeitwerk/kernel.rb:35:in `require'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/bootsnap-1.10.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:42:in `require_relative'
from config.ru:3:in `block in <main>'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/rack-2.2.3/lib/rack/builder.rb:116:in `eval'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/rack-2.2.3/lib/rack/builder.rb:116:in `new_from_string'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/rack-2.2.3/lib/rack/builder.rb:105:in `load_file'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/rack-2.2.3/lib/rack/builder.rb:66:in `parse_file'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/rack-2.2.3/lib/rack/server.rb:349:in `build_app_and_options_from_config'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/rack-2.2.3/lib/rack/server.rb:249:in `app'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/rack-2.2.3/lib/rack/server.rb:422:in `wrapped_app'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.2.2/lib/rails/commands/server/server_command.rb:76:in `log_to_stdout'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.2.2/lib/rails/commands/server/server_command.rb:36:in `start'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.2.2/lib/rails/commands/server/server_command.rb:143:in `block in perform'
from <internal:kernel>:90:in `tap'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.2.2/lib/rails/commands/server/server_command.rb:134:in `perform'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/thor-1.2.1/lib/thor.rb:392:in `dispatch'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.2.2/lib/rails/command/base.rb:87:in `perform'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.2.2/lib/rails/command.rb:48:in `invoke'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/railties-7.0.2.2/lib/rails/commands.rb:18:in `<main>'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/bootsnap-1.10.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
from /Users/st/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/bootsnap-1.10.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
from bin/rails:4:in `<main>'
我試過的
谷歌搜索“心理”錯誤訊息揭示了這可能是相關的。但是當我在整個應用程式中搜索YAML.safe_load（甚至只是safe_load）時，它的出現次數為 0。（也許我應該在我的應用程式中搜索實際的寶石？）。
這是一個很長的鏡頭，但基于此評論，我跑去gem rdoc --all更新所有 rdoc 檔案。但這沒有幫助。
uj5u.com熱心網友回復：
該問題與此問題中描述的 Ruby 3.1 / Psych 4.x 不兼容有關：https ://bugs.ruby-lang.org/issues/17866
Ruby 3.0 帶有 Psych 3，而 Ruby 3.1 帶有 Psych 4，它有一個重大的突破性變化。
- 新的 YAML 加載方法（Psych 4）不會加載別名，除非它們得到
aliases: true引數。 - 舊的 YAML 加載方法（Psych 3）不支持
aliases關鍵字。
在這一點上，似乎任何地方的任何人想要以與 Ruby 3.1 之前相同的方式加載 YAML，都需要執行以下操作：
begin
YAML.load(source, aliases: true, **options)
rescue ArgumentError
YAML.load(source, **options)
end
由 Rails 團隊修補。
在您的情況下，我懷疑您需要先查看與您的主要版本偏好匹配的 Rails 版本是否包含此補丁，然后才能升級到 Ruby 3.1。
就個人而言，無論我在哪里控制加載 YAML 的代碼，我都會添加這樣的擴展：
module YAML
def self.properly_load_file(path)
YAML.load_file path, aliases: true
rescue ArgumentError
YAML.load_file path
end
end
這讓我可以YAML.properly_load_file path為所有版本獲得一個半透明的作業解決方案。
我希望這種行為在 Ruby 3.1.x / Psych 中可以恢復。
轉載請註明出處，本文鏈接：https://www.uj5u.com/ruanti/429657.html
標籤：轨道上的红宝石
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