Need to install ruby-debug to run the server in debugging mode

Question

I have a Ruby on Rails application with Ruby 1.9.3p327 and Rails 3.2.11. I'm trying to use the Ruby-debugger plug-in for Sublime Text. I installed the "debugger" gem. There is no "ruby-debug19" gem in my project. Here is a snippet from my Gemfile.

group :development do
  gem 'debugger'
end

My Gemfile.lock has:

debugger (1.6.1)
      columnize (>= 0.3.1)
      debugger-linecache (~> 1.2.0)
      debugger-ruby_core_source (~> 1.2.3)
    debugger-linecache (1.2.0)
    debugger-ruby_core_source (1.2.3)

When I try to start Webrick,

rails s -e development --debugger

an error is printed:

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

I read that this issue is caused by the "ruby-debug" gem, and the solution is to use the "debugger" gem instead, but it's exactly what I'm doing.

Answer 1

@Mark

Fetching: hashie-3.5.7.gem (100%)
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The `minitar` executable is no longer bundled with `minitar`. If you are
expecting this executable, make sure you also install `minitar-cli`.
Successfully installed minitar-0.6.1
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Successfully installed minitar-cli-0.6.1
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'archive-tar-minitar' has been deprecated; just install 'minitar'.
Successfully installed archive-tar-minitar-0.6.1
Fetching: ruby_core_source-0.1.5.gem (100%)
Successfully installed ruby_core_source-0.1.5
Fetching: linecache19-0.5.12.gem (100%)
Building native extensions.  This could take a while...
Successfully installed linecache19-0.5.12
Fetching: ruby-debug-base19-0.11.25.gem (100%)
Building native extensions.  This could take a while...
Successfully installed ruby-debug-base19-0.11.25
Fetching: ruby-debug19-0.11.6.gem (100%)
ruby-debug19's executable "rdebug" conflicts with debugger
Overwrite the executable? [yN]  y

This is the gem install ruby-debug19 output

I've also added

group :development do
  gem 'ruby-debug'
end

to my Gemfile then run:

bundle install

Unfortunately when I run:

rails s -e development --debugger

same error occurs

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