C:\Nginx\html\riv-sa.com>thin start
Using rack adapter
Thin web server (v1.6.2 codename Doc Brown)
Maximum connections set to 1024
Listening on 0.0.0.0:3000, CTRL+C to stop
C:/Ruby200/lib/ruby/gems/2.0.0/gems/thin-1.6.2/lib/thin/backends/tcp_server.rb:16:in `connect': cannot load such file -- thin/connection (LoadError)
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/thin-1.6.2/lib/thin/backends/base.rb:63:in `block in start'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/eventmachine-1.0.3-x86-mingw32/lib/eventmachine.rb:187:in `call'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/eventmachine-1.0.3-x86-mingw32/lib/eventmachine.rb:187:in `run_machine'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/eventmachine-1.0.3-x86-mingw32/lib/eventmachine.rb:187:in `run'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/thin-1.6.2/lib/thin/backends/base.rb:73:in `start'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/thin-1.6.2/lib/thin/server.rb:162:in `start'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/thin-1.6.2/lib/thin/controllers/controller.rb:87:in `start'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/thin-1.6.2/lib/thin/runner.rb:199:in `run_command'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/thin-1.6.2/lib/thin/runner.rb:155:in `run!'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/thin-1.6.2/bin/thin:6:in `<top(required)>'
        from C:/Ruby200/bin/thin:23:in `load'
        from C:/Ruby200/bin/thin:23:in `<main>'