I am relatively new to programming, therefore I hope that the question is not absolutely stupid.
I got a problem concerning my rails app.
I try to use bootstrap.
I had this same problem, solved by fixing bootstrap-sass and sass-rails versions to:
gem 'sass-rails', '~> 3.2' gem 'bootstrap-sass', '~> 2.3.1.0'
And then bundle install and server restart.
bundle install