无法启动Rails调试器（将Rails 3.1.3与ruby 1.9.3结合使用）

Question

In a completely new test rails app, I enter:

$ sudo gem install ruby-debug19
$ bundle install
# and add the following line to my Gemfile
gem 'ruby-debug19', "~> 0.11.6"
$ rails server --debugger

I receive the following error

You need to install ruby-debug to run the server in debugging mode. With gems, use 'gem install ruby-debug'

I have tried a dozen variations. What am I missing??

Answer 1

Try this (see https://github.com/chuckg/chuckg.github.com/blob/master/ruby/193_and_rdebug.md ):

  gem 'ruby-debug19', :require => false
  gem 'ruby-debug-base19', :git => 'https://github.com/tribune/ruby-debug-base19.git', :require => false
  gem 'linecache19', :git => 'git@github.com:chuckg/linecache19.git', :branch => "0_5_13/dependencies", :require => false

If not working, go back to ruby 1.9.2 and try

gem 'ruby-debug19', :require => "ruby-debug"