Twitter Bootstrap not found via Rails

问题:

I´m learning Ruby on Rails and tried to implement Twitter Bootstrap. I know how to use and edit it, as I used it before - just without rails.

Setup was done, as suggested here: http://ruby.railstutorial.org/chapters/filling-in-the-layout?version=3.2#sec-custom_css - As I read this book.

The following error occurs: File to import not found or unreadable: bootstrap.scss. while trying to import @import "bootstrap".

Here is my gemfile:

source 'https://rubygems.org'

gem 'rails', '3.2.1'

# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'

gem 'sqlite3-ruby'
gem 'bootstrap-sass', '~> 2.1.1.0'

# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'
...

What do I wrong? Thank you in advance!

Edit:

Do I have to install "Compass" aswell? When checking with gem server I find under "bootstrap-sass" bootstrap-sass 2.1.1.0 [rdoc] [www] - depends on compass, sass-rails.

回答1:

I just followed the instruction in the link you provided and had no problem using bootstrap. I only did following steps:

1) edited the Gemfile so that the assets group would look like:

group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'
  gem 'bootstrap-sass', '~> 2.1.1.0'
  gem 'uglifier', '>= 1.0.3'
end

2) created the file app/assets/stylesheets/custom.css.scss and placed the following line:

@import 'bootstrap';

3) generated a scaffold:

rails g scaffold posts title:string body:text date:date

4) migrated the database:

rake db:migrate

5) fired up the server

rails s

6) visit the posts page

http://localhost:3000/posts

You can view the view the generated css:

http://localhost:3001/assets/custom.css

where the bootstrap css is folded in.

回答2:

gem 'bootstrap-sass', '~> 2.1.1.0' should be out of the :assets group. Just place it below gem 'sqlite3-ruby' and run bundle install again.