Unable to debug in RubyMine 4.5 using Ruby 1.9.3

My apologies for the length of the question, but I want to make it clear I am not making any stupid mistakes! So, I am struggling to get debugging working in RubyMine 4.5 using Ruby 1.9.3, my steps are as follows: Fresh (i.e. having removed all previous ruby and gem directories) install of Ruby 1.9.3, Ruby Gems, DevKit and Rails (following this guide) - that works fine. I then try to begin working with my team's ruby code. I open up the directory in RubyMine (remembering first to delete the `.idea` directory) and am prompted to run `bundle install` which I do (from console) as requested. This completes successfully. Restart RubyMine. I then ensure Ruby is working: Tools > IRB Console > `puts "test"` `#test => nil` - Works I now try the debugger (`SHIFT` + `F9`) and see the message: `The gem ruby-debug-base19x required by the debugger is currently not installed. Would you like to install it?"` I click cancel and check my Gemfile, the only ones related to debugging present are: ``` # Debugging gem 'debugger' #gem 'ruby-debug-base19', :require => false #gem 'ruby-debug19', :require => false gem 'ruby-prof', :require => false #, :git => 'git://github.com/wycats/ruby-prof.git' ``` Looks like we have debugger in favour of `ruby-debug`. Reading here, however, it seems `debugger` is not sufficient. I need to install `ruby-debug-base19x`. So, following SO, I comment out debugger from Gemfile and run ``` gem install ruby-debug-base19x --pre gem install ruby-debug-ide --pre ``` Which run fine, so I add ``` gem 'ruby-debug-base19x', '0.11.30.pre10' gem 'ruby-debug-ide', '0.4.17.beta14' ``` to my Gemfile, and run a `bundle install` from the console. Finally, i open the debugger inside RubyMine (SHIFT + F9). And `puts "test" #test => nil` works again. So i try double clicking in the gutter of my script to create a breakpoint, RubyMine pauses for a second and then i get: ``` D:\Ruby\Ruby193\bin\ruby.exe -e $stdout.sync=true;$stderr.sync=true;load($0=ARGV.shift) D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/ruby-debug-ide-0.4.17.beta14/bin/rdebug-ide --dispatcher-port 55451 --port 55452 -- S:/code/account_groups/script/rails console Fast Debugger (ruby-debug-ide 0.4.17.beta14, ruby-debug-base 0.11.30.pre10) listens on 127.0.0.1:55452 D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/debugger-1.1.4/lib/ruby_debug.so: warning: already initialized constant VERSION 5992: Exception in DebugThread loop: undefined method `errmsg' for #<Debugger::ControlState:0x2a2f3e8> Backtrace: D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/debugger-1.1.4/lib/ruby-debug/command.rb:160:in `errmsg' from: D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/debugger-1.1.4/lib/ruby-debug/commands/breakpoints.rb:81:in `execute' from: D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/ruby-debug-ide-0.4.17.beta14/lib/ruby-debug-ide/ide_processor.rb:89:in `block in process_commands' from: D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/ruby-debug-ide-0.4.17.beta14/lib/ruby-debug-ide/ide_processor.rb:86:in `catch' from: D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/ruby-debug-ide-0.4.17.beta14/lib/ruby-debug-ide/ide_processor.rb:86:in `process_commands' from: D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/ruby-debug-ide-0.4.17.beta14/lib/ruby-debug-ide.rb:160:in `block in start_control' Process finished with exit code 0 ``` I have also tried using a backup copy of the code and following the same steps, i also get the following error when trying to load up the debugger: ``` Uncaught exception: cannot load such file -- ruby-debug D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `require' D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `block in require' D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:236:in `load_dependency' D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `require' S:/code/account_groups_so/lib/systematic-online/r_spec_runner.rb:5:in `<top (required)>' D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `require' D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `block in require' D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:236:in `load_dependency' D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `require' S:/code/account_groups_so/config/environment.rb:12:in `block in <top (required)>' S:/code/account_groups_so/config/environment.rb:12:in `each' S:/code/account_groups_so/config/environment.rb:12:in `<top (required)>' D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `require' D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `block in require' D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:236:in `load_dependency' D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `require' D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.6/lib/rails/application.rb:103:in `require_environment!' D:/Ruby/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.6/lib/rails/commands.rb:40:in `<top (required)>' S:/code/account_groups_so/script/rails:6:in `require' S:/code/account_groups_so/script/rails:6:in `<top (required)>' ``` There is nothing wrong with the script (i have used it fine before) and the trace seems related to `ruby-debug-ide` - what's going on? Thanks for any help - this is driving me mad!