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jquery - Ruby 1.9.1、Rails 2.3.2 和 jrails 0.4 出现 "rescue in const_missing"错误

coder 2025-07-13 原文

我最近开始了一个项目，团队决定我们希望使用 jQuery 而不是 Prototype/Scriptaculous 来满足我们的 javascript 需求。我们设置了我们的项目，并开始切换。插件已安装via these instructions ，一切都按计划进行。不久之后，当尝试运行“./script/server”时，我们收到以下错误:

=> Rails 2.3.2 application starting on http://0.0.0.0:3000
/usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:105:in `rescue in const_missing': uninitialized constant ActionView::Helpers::JavaScriptElementProxy::ActionView (NameError)
    from /usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:94:in `const_missing'
    from /home/company/Development/project/vendor/plugins/jrails/lib/jrails.rb:229:in `<class:JavaScriptElementProxy>'
    from /home/company/Development/project/vendor/plugins/jrails/lib/jrails.rb:226:in `<module:Helpers>'
    from /home/company/Development/project/vendor/plugins/jrails/lib/jrails.rb:2:in `<module:ActionView>'
    from /home/company/Development/project/vendor/plugins/jrails/lib/jrails.rb:1:in `<top (required)>'
    from /usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in `require'
    from /usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in `block in require'
    from /usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:521:in `new_constants_in'
    from /usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in `require'
    from /home/company/Development/project/vendor/plugins/jrails/init.rb:6:in `block in evaluate_init_rb'
    from /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/rails/plugin.rb:146:in `eval'
    from /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/rails/plugin.rb:146:in `block in evaluate_init_rb'
    from /usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.2/lib/active_support/core_ext/kernel/reporting.rb:11:in `silence_warnings'
    from /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/rails/plugin.rb:142:in `evaluate_init_rb'
    from /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/rails/plugin.rb:48:in `load'
    from /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/rails/plugin/loader.rb:38:in `block in load_plugins'
    from /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/rails/plugin/loader.rb:37:in `each'
    from /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/rails/plugin/loader.rb:37:in `load_plugins'
    from /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/initializer.rb:348:in `load_plugins'
    from /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/initializer.rb:163:in `process'
    from /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/initializer.rb:113:in `run'
    from /home/company/Development/project/config/environment.rb:9:in `<top (required)>'
    from /usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in `require'
    from /usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in `block in require'
    from /usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:521:in `new_constants_in'
    from /usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in `require'
    from /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/commands/server.rb:84:in `<top (required)>'
    from script/server:3:in `require'
    from script/server:3:in `<main>'

我进行了大量搜索，但找不到此错误的原因，也找不到任何有关版本兼容性问题的文档。非常感谢你们能提供的任何帮助。

谢谢，

迈克·崔西奇

最佳答案

看起来它已被修补以与 Ruby 1.9 一起使用，请尝试从这个 git 存储库而不是主站点获取它: http://github.com/cheald/jrails/tree/master

关于jquery - Ruby 1.9.1、Rails 2.3.2 和 jrails 0.4 出现 "rescue in const_missing"错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/1028766/

const_missingampgemslibfromjqueryruby-on-railsrubyjrails

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