Question
I just updated to Ruby 1.9.3p0 and Rails 3.1.1. Now when I try to launch the
server, it complains that I should install ruby-debug, even though it's
already installed.
% rails server --environment=development --debug
=> Booting WEBrick
=> Rails 3.1.0 application starting in development on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
You need to install ruby-debug to run the server in debugging mode. With gems, use 'gem install ruby-debug'
Exiting
In my Gemfile I have
# see: http://stackoverflow.com/questions/1083451/debugging-in-ruby-1-9
gem 'ruby-debug-base19', "0.11.24"
gem 'ruby-debug19', "0.11.6"
Is it possible to run debug with the latest version of Ruby?
Answer
Update (April 28, 2012)
Try the new debugger gem as a replacement for ruby-debug.
([credit to @ryanb](https://stackoverflow.com/questions/8087610/ruby-debug- with-ruby-1-9-3#comment12872326_8088498))
Update (March 2, 2012)
Installation of linecache19 and ruby-debug-base19 can be easily done with:
bash < <(curl -L https://raw.github.com/gist/1333785)
Original answer
Have you looked at [ruby-debug19 on ruby-1.9.3-preview1](https://stackoverflow.com/questions/7054948/ruby- debug19-on-ruby-1-9-3-preview1)?
Here's a temporary solution: http://blog.wyeworks.com/2011/11/1/ruby-1-9-3-and-ruby-debug
Excerpt from the site:
First download linecache19-0.5.13.gem and ruby-debug-base19-0.11.26.gem from http://rubyforge.org/frs/?group_id=8883, then …
$ gem install linecache19-0.5.13.gem Building native extensions. This could take a while... Successfully installed linecache19-0.5.13 1 gem installed $ gem install ruby-debug-base19-0.11.26.gem -- --with-ruby-include=/Users/santiago/.rbenv/source/ruby-1.9.3-p0
Building native extensions. This could take a while... Successfully installed ruby-debug-base19-0.11.26 1 gem installed $ irb irb(main):001:0> require 'ruby-debug' => true
