在 Ruby 1.9.2 中使用 ActiveSupport 失败
我需要在 Ruby 脚本中使用 ActiveSupport，如下所示：
require 'rubygems'
require 'active_support/core_ext/hash'
使用 some_hash.with_in Different_access。
在 Ruby 1.8 中工作正常，但 Ruby 1.9 抛出以下异常：
<internal:lib/rubygems/custom_require>:29:in `require': no such file to load -- active_support/core_ext/hash (LoadError)
from <internal:lib/rubygems/custom_require>:29:in `require'
from backup.rb:3:in `<main>'
在 Ruby 1.9.2 中执行此操作的正确方法是什么？
I am requiring ActiveSupport in a Ruby script like so:
require 'rubygems'
require 'active_support/core_ext/hash'
to use some_hash.with_indifferent_access.
In Ruby 1.8 that worked fine but Ruby 1.9 throws the following exception:
<internal:lib/rubygems/custom_require>:29:in `require': no such file to load -- active_support/core_ext/hash (LoadError)
from <internal:lib/rubygems/custom_require>:29:in `require'
from backup.rb:3:in `<main>'
What is the correct way to do this in Ruby 1.9.2?
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在 ruby 1.9.2 和 activesupport 2.3.5 中也遇到了同样的问题。运行
gem update activesupport，更新到3.2.9，问题就消失了。Ran into this same issue with ruby 1.9.2 and activesupport 2.3.5. Ran
gem update activesupport, updated to 3.2.9, and the issue went away.首先，Ruby 1.9 已经包含 rubygems，因此您不需要包含它。
其次，这对我来说在 Ruby 1.9.1 和 Ruby 1.9.2 with ActiveSupport 3.0.3 下工作得很好。您确定在您测试的同一 Ruby 环境下正确安装了
activesupportgem 吗？ （也许ruby --version和gem list可能会显示一些错误。）First, Ruby 1.9 includes rubygems already, so you don't need to include that.
Secondly, this works fine for me under Ruby 1.9.1 and Ruby 1.9.2 with ActiveSupport 3.0.3. Are you sure that you have the
activesupportgem installed properly under the same Ruby environment that you are testing with? (Perhapsruby --versionandgem listmight show something awry.)