Rails webrick force-exits: uninitialized constant WebConsole::Railtie::Middleware

just trying to run WEBrick on windows using rails s but getting following error

Rails webrick force-exits: uninitialized constant WebConsole::Railtie::Middleware (NameError)

I looked into following question but it didn't helped me at all, I'm unable to run which command on windows, also I've only one ruby installation.

ruby 2.2.2p95
rails 4.2.0