heroku Cedar上的CSV

Question

我想在heroku cedar上使用带有rails 3.2.1的CSV模块，但是

require 'CSV'

不起作用

以下是使用控制台测试时的错误：

Loading production environment (Rails 3.2.1)
irb(main):001:0> require 'CSV'
LoadError: no such file to load -- CSV
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:251:in `require'
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:251:in `block in require'
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:236:in `load_dependency'
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:251:in `require'
    from (irb):1
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/commands/console.rb:47:in `start'
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/commands/console.rb:8:in `start'
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/commands.rb:41:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

Answer 1

试一试

require 'csv'

它区分大小写。

更新:这不是Heroku的问题，提醒你-如果你在本地做同样的事情，你会得到同样的错误。CSV位于Ruby1.9的标准库中。