无法安装Intercom.io gem Ubuntu 12.04 LTS

Question

我正在尝试将intercom.io安装到我的rails应用程序中，但是我在生成配置文件时得到了如下结果：

/var/lib/gems/1.8/gems/intercom-rails-0.2.14/lib/intercom-rails/config.rb:13:in `send': undefined method `define_singleton_method' for IntercomRails::Config:Class (NoMethodError)
from /var/lib/gems/1.8/gems/intercom-rails-0.2.14/lib/intercom-rails/config.rb:13:in `config_reader'
from /var/lib/gems/1.8/gems/intercom-rails-0.2.14/lib/intercom-rails/config.rb:8:in `config_accessor'
from /var/lib/gems/1.8/gems/intercom-rails-0.2.14/lib/intercom-rails/config.rb:74
from /var/lib/gems/1.8/gems/intercom-rails-0.2.14/lib/intercom-rails.rb:9:in `require'
from /var/lib/gems/1.8/gems/intercom-rails-0.2.14/lib/intercom-rails.rb:9
from /var/lib/gems/1.8/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:in `require'
from /var/lib/gems/1.8/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:in `require'
from /var/lib/gems/1.8/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:in `each'
from /var/lib/gems/1.8/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:in `require'
from /var/lib/gems/1.8/gems/bundler-1.2.3/lib/bundler/runtime.rb:55:in `each'
from /var/lib/gems/1.8/gems/bundler-1.2.3/lib/bundler/runtime.rb:55:in `require'
from /var/lib/gems/1.8/gems/bundler-1.2.3/lib/bundler.rb:128:in `require'
from /home/ian/SB/config/application.rb:7
from /var/lib/gems/1.8/gems/railties-3.2.11/lib/rails/commands.rb:24:in `require'
from /var/lib/gems/1.8/gems/railties-3.2.11/lib/rails/commands.rb:24
from script/rails:6:in `require'
from script/rails:6

Answer 1

看起来您使用的是Ruby1.8，而我们的gem当前使用的是Ruby1.9特性Object#define_singleton_method

我们已经在intercom/intercom-rails github repo上创建了一个问题来跟踪修复这个问题。有新版本的时候我会通知你的。

如果可能，使用it's recommended to run rails 3+ on ruby >= 1.9.3 (对我们来说，这至少意味着不要从源代码安装)。

谢谢你让我们注意到这一点。