Question

直到昨天，我可以使用rails应用程序根目录下的rails c快捷方式启动rails控制台。该应用程序设置为仅API应用程序，以提供我的角度前端。当我昨晚尝试启动它时出现以下错误：

Running via Spring preloader in process 5967
/Users/Andrew/.rvm/gems/ruby-2.2.1/gems/actionpack-4.2.5/lib/action_dispatch/middleware/stack.rb:90:in `insert': can't modify frozen Array (RuntimeError)
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/actionpack-4.2.5/lib/action_dispatch/middleware/stack.rb:90:in `insert'
    from /Users/Andrew/sites/mine/K24/api/config/application.rb:15:in `<class:Application>'
    from /Users/Andrew/sites/mine/K24/api/config/application.rb:10:in `<module:Api>'
    from /Users/Andrew/sites/mine/K24/api/config/application.rb:9:in `<top (required)>'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `block in require'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:240:in `load_dependency'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:141:in `require_application_and_environment!'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:67:in `console'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5/lib/rails/commands.rb:17:in `<top (required)>'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `block in require'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:240:in `load_dependency'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require'
    from /Users/Andrew/sites/mine/K24/api/bin/rails:9:in `<top (required)>'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:268:in `load'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:268:in `block in load'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:240:in `load_dependency'
    from /Users/Andrew/.rvm/gems/ruby-2.2.1/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:268:in `load'
    from /Users/Andrew/.rvm/rubies/ruby-2.2.1/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /Users/Andrew/.rvm/rubies/ruby-2.2.1/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from -e:1:in `<main>'

根据这个错误，它抱怨application.rb file我在文件夹上运行了差异问题，并发现差异只是以下“

在application.rb我仅删除了评论。
在路线文件中，我添加了几条新路线：

发布“更新”，发布到：“发布#update”

我尝试通过执行以下操作来解决此问题：

停止并重新启动Spring
删除了其他路线（即更新路线）
根据此post我尝试将该行添加到application.rb文件中：

（注意 - 出于某种原因，这不会格式化为代码块） config.autoload_paths + =％W {＃{config.root} / lib}

有关为何发生这种情况的任何建议？

编辑

发布application.rb文件的内容：

require File.expand_path('../boot', __FILE__)

require 'rails/all'

# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)

module Api
  class Application < Rails::Application
    # Settings in config/environments/* take precedence over those specified here.
    # Application configuration should go into files in config/initializers
    # -- all .rb files in that directory are automatically loaded.

    # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
    # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
    # config.time_zone = 'Central Time (US & Canada)'

    # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
    # config.i18n.default_locale = :de

    config.api_only = true
    # Do not swallow errors in after_commit/after_rollback callbacks.
    config.active_record.raise_in_transactional_callbacks = true

    config.middleware.insert_before 0, "Rack::Cors", :debug => true, :logger => (-> { Rails.logger }) do
      allow do
        origins '*'

        resource '/cors',
          :headers => :any,
          :methods => [:post]

        resource '*',
          :headers => :any,
          :methods => [:get, :post, :delete, :put, :options, :head],
          :max_age => 0
      end
    end
  end
end

Answer 1

我认为问题在于这一行：Bundler.require(*Rails.groups)

在启动控制台之前，捆绑器会尝试通过该行启动您的宝石。检查你的Gemfile。您是否定义了任何组（测试，开发等）？

您可能希望尝试使用此代码：Bundler.require(:default, :assets, Rails.env)

Answer 2

我对barr-code的回答的编辑似乎没有得到批准，但是我给了她+1，因为它引导我得到以下答案。

实际问题是开发环境下的gem spring实际上导致了问题。评论t out允许我访问rails控制台 - 这解决了上述问题，但这意味着该应用程序会引发另一个错误can't find a helper。

所以我现在所做的实际上是根据需要在两者之间切换 - 不理想，但这确实意味着我可以继续发展。

启动rails控制台抛出错误

2 个答案: