I am using bootstrap sass:
https://github.com/twbs/bootstrap-sass
but where is the boostrap-responsive.css file? I'm trying to add the classes row-fluid to make a layout as shown in this link, but no classes are being picked up.
jsfiddle.net/SxcqH/52/
Bootstrap 3.x has no "boostrap-responsive.css" file anymore. All responsive classes are now being compiled into a single css file. Bootstrap for Sass is currently based on Twitter Bootstrap 3.3.4.
See also this question.