The bootstrap-sass-rails gem is deprecated starting with version 3.1.0.0. There is an official Sass port of Bootstrap now which can be found within the twbs organization on GitHub:
https://github.com/twbs/bootstrap-sass
You are recommended to upgrade your Gemfile to directly use bootstrap-sass from now on. Upgrading should be really simple, the differences between the gems are mostly in the namespacing.
Remove the twitter/ prefix from all your @import
and = require
statements:
Before:
@import "twitter/bootstrap";
@import "twitter/bootstrap/modal";
After:
@import "bootstrap";
@import "bootstrap/modal";
Before:
//= require "twitter/bootstrap";
//= require "twitter/bootstrap/modal";
After:
//= require "bootstrap";
//= require "bootstrap/modal";
Thank you for using bootstrap-sass-rails!