/var/lib/gems/2.1.0/gems/thin-1.6.2/lib/thin/controllers/controller.rb:37:in `start': wrong number of arguments (1 for 0) (ArgumentError)
from /var/lib/gems/2.1.0/gems/thin-1.6.2/lib/thin/runner.rb:199:in `run_command'
from /var/lib/gems/2.1.0/gems/thin-1.6.2/lib/thin/runner.rb:155:in `run!'
from /var/lib/gems/2.1.0/gems/thin-1.6.2/bin/thin:6:in `<top (required)>'
from /usr/local/bin/thin:23:in `load'
from /usr/local/bin/thin:23:in `<main>'
bundle exec thin start RAILS_ENV=production
produces error: