I just upgraded to 2.0.2 and when I hit debug to test my new wicked code, i was getting the following error (also included in the screenshot below)
Cannot connect to the debugged process at port XXXXX in 10s
/LIbrary/Ruby/Gems/1.8/gems/ruby-debug-ide-0.4.4/bin/rdebug-ide:21: uninitialized constant Debugger (NameError)
To fix this, I needed to upgrade to the latest version of ruby-debug-ide.
To uninstall ruby-debug-ide:
sudo gem uninstall ruby-debug-ide
To install the 0.4.9
sudo gem install ruby-debug-ide --version 0.4.9
Then it worked.