Starting Rails with error -
after running rails couple months without issues, got error when starting server (rails s) on macbook pro osx 10.9. new projects scratch return same error. hint appreciated. in advance !! macbook-pro-de-myname:blog myname$ rails s => booting webrick => rails 4.1.4 application starting in development on [...] => run `rails server -h` more startup options => notice: server listening on interfaces (-.-.-.-). consider using 127.0.0.1 (--binding option) => ctrl-c shutdown server [2014-08-17 21:22:30] info webrick 1.3.1 [2014-08-17 21:22:30] info ruby 2.1.2 (2014-05-08) [x86_64-darwin13.0] exiting /users/myname/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/webrick/utils.rb:76:in `create_listeners': undefined method `tcp_server_sockets' socket:class (nomethoderror) /users/myname/.rvm/rubies/ruby2.1.2/lib/ruby/2.1.0/webrick/server.rb:132:in `listen' [etc.]