rails 使用 NoMethodError 生成损坏答案

【问题标题】：rails generate broken with NoMethodErrorrails 使用 NoMethodError 生成损坏
【发布时间】：2013-05-17 02:48:45
【问题描述】：

我的 Rails 环境遇到了一些问题 - 运行如下命令：

$ rails generate scaffold_controller model_name

导致以下跟踪：

/Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/railties-3.2.13/lib/rails/generators/generated_attribute.rb:13:in `parse': undefined method `split' for :clear:Symbol (NoMethodError)
    from /Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/railties-3.2.13/lib/rails/generators/named_base.rb:161:in `block in parse_attributes!'
    from /Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/railties-3.2.13/lib/rails/generators/named_base.rb:160:in `map'
    from /Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/railties-3.2.13/lib/rails/generators/named_base.rb:160:in `parse_attributes!'
    from /Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/railties-3.2.13/lib/rails/generators/named_base.rb:21:in `initialize'
    from /Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/railties-3.2.13/lib/rails/generators/resource_helpers.rb:18:in `initialize'
    from /Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/thor-0.18.1/lib/thor/group.rb:227:in `new'
    from /Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/thor-0.18.1/lib/thor/group.rb:227:in `dispatch'
    from /Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/thor-0.18.1/lib/thor/base.rb:439:in `start'
    from /Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/railties-3.2.13/lib/rails/generators.rb:171:in `invoke'
    from /Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/railties-3.2.13/lib/rails/commands/generate.rb:12:in `<top (required)>'
    from /Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `require'
    from /Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `block in require'
    from /Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:236:in `load_dependency'
    from /Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `require'
    from /Users/me/.rvm/gems/ruby-1.9.3-p392@myproject/gems/railties-3.2.13/lib/rails/commands.rb:29:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

由于跟踪中似乎没有任何内容来自我的特定项目，我对可能发生的事情感到有些困惑。如您所见，我在 rvm 安装的 ruby 1.9.3 上运行 rails 3.2.13。

有什么想法吗？

【问题讨论】：

我在使用 Rails 4.0.0 并通过 Zeus 运行生成器时遇到了同样的错误。我已经对我的生成器进行了一些定制（默认关闭了 helpers/stylesheets/javascripts），但除此之外都是非常普通的。你解决过这个问题吗？
很遗憾，不...我一直在通过避免受影响的生成器来解决它...
嗯嗯。下周我会花点时间看看它。我会在这里发布任何有用的信息。

标签： ruby-on-rails-3 ruby-on-rails-3.2 ruby-1.9.3 nomethoderror

【解决方案1】：

我遇到了同样的问题。事实证明，我的代码中某处有以下行。

include Term::ANSIColor

彩色术语输出需要此代码。但是当你需要生成或销毁脚手架时，可以暂时注释掉它。方法或符号 'clear' 与其他 gem 冲突。所以这可能也修复了 rake:erd。

【讨论】：