rails
http://stackoverflow.com/questions/12520456/execjsruntimeerror-on-windows-7-trying-to-follow-rubytutorial http://nodejs.org/ から Node.js を入れて再起動する
http://stackoverflow.com/questions/12520456/execjsruntimeerror-on-windows-7-trying-to-follow-rubytutorial http://nodejs.org/ から Node.js を入れて再起動する