This is only a small annoyance but after installing the simplecov gem everyone one our team now gets an error when exiting rails console.

Here's the errors:
/Users/danieljohnson/.rvm/rubies/ruby-2.1.0/lib/ruby/2.1.0/irb.rb:412:in throw': uncaught throw :IRB_EXIT (ArgumentError) from /Users/danieljohnson/.rvm/rubies/ruby-2.1.0/lib/ruby/2.1.0/irb.rb:412:inirb_exit'
from /Users/danieljohnson/.rvm/rubies/ruby-2.1.0/lib/ruby/2.1.0/irb/context.rb:392:in exit' from /Users/danieljohnson/.rvm/rubies/ruby-2.1.0/lib/ruby/2.1.0/irb/extend-command.rb:29:inirb_exit'
from /Users/danieljohnson/.rvm/gems/ruby-2.1.0/gems/simplecov-0.8.2/lib/simplecov/defaults.rb:80:in `block in <top (required)>'