I am getting the following error just after upgrading to rails 4.2.0. It used to work fine and I didn't even touch that file, so I am not quite sure what makes the sass gem raise this error. My
gem 'rails', '~> 4.2.0'
# Assets gems
group :assets do
gem 'sass-rails', '~> 4.0'
gem 'coffee-rails', '~> 4.0'
Sass::SyntaxError: Colors must have either three or six digits: '#b'
For some reason I had this line:
bootstrap.min.css file which wasn't picked up with the previous version of Rails. Odd!