title: Can't debug test cases in ruby mine
body: <p>I used to debug test cases in ruby mine for my rails test cases. Some time ago I updated my ruby mine and not sure what happened since then, I am not able to debug my test cases.
  Attaching the screenshot of the error below:</p>
  
  <p><img src="https://i.imgur.com/Tt9CAPT.png" alt="screenshot-here" title="go on, click on it."></p>
  
  <p>What can be done here to rectify this?</p>
  
  <p>Here is the same console output in plain text:</p>
  
  <pre><code>Testing started at 12:53 PM ...
  bash -c "/Users/someUSER/.rvm/bin/rvm ruby-2.3.1 do /Users/someUSER/.rvm/rubies/ruby-2.3.1/bin/ruby /Users/someUSER/.rvm/gems/ruby-2.3.1@global/gems/ruby-debug-ide-0.7.0.beta6/bin/rdebug-ide --key-value --disable-int-handler --evaluation-timeout 10 --evaluation-control --time-limit 100 --memory-limit 0 --rubymine-protocol-extensions --port 49496 --host 0.0.0.0 --dispatcher-port 49497 -- /Users/someUSER/.rvm/gems/ruby-2.3.1/bin/rspec /Users/someUSER/RubymineProjects/Proj/spec/controllers/site/some_controller_spec.rb --require teamcity/spec/runner/formatter/teamcity/formatter --format Spec::Runner::Formatter::TeamcityFormatter --example \"Site::SomeController Some POST create new data \""
  
  Fast Debugger (ruby-debug-ide 0.7.0.beta6, debase 0.2.2, file filtering is supported) listens on 0.0.0.0:49496
  Uncaught exception: cannot load such file -- rspec/core/formatters/fallback_message_formatter
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/formatters.rb:132:in `require'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/formatters.rb:132:in `setup_default'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/reporter.rb:47:in `block in prepare_default'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/reporter.rb:228:in `ensure_listeners_ready'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/reporter.rb:199:in `notify'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/reporter.rb:92:in `message'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/reporter.rb:161:in `notify_non_example_exception'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/configuration.rb:2037:in `rescue in load_file_handling_errors'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/configuration.rb:2034:in `load_file_handling_errors'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/configuration.rb:1560:in `block in load_spec_files'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/configuration.rb:1558:in `each'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/configuration.rb:1558:in `load_spec_files'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/runner.rb:98:in `setup'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/runner.rb:86:in `run'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/runner.rb:71:in `run'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/lib/rspec/core/runner.rb:45:in `invoke'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/gems/rspec-core-3.8.0/exe/rspec:4:in `&lt;top (required)&gt;'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/bin/rspec:23:in `load'
      /Users/someUSER/.rvm/gems/ruby-2.3.1/bin/rspec:23:in `&lt;top (required)&gt;'
      /Users/someUSER/.rvm/gems/ruby-2.3.1@global/gems/ruby-debug-ide-0.7.0.beta6/bin/rdebug-ide:187:in `&lt;main&gt;'
  
  Process finished with exit code 1
  
  Empty test suite.
  </code></pre>