我在rails4,bootstrap 3上运行,我的终端出现以下错误消息.
Started GET "/assets/bootstrap.css.map" for 127.0.0.1 at 2014-08-24 23:41:36 -0700 ActionController::RoutingError (No route matches [GET] "/assets/bootstrap.css.map"): actionpack (4.1.4) lib/action_dispatch/middleware/debug_exceptions.rb:21:in `call' actionpack (4.1.4) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call' railties (4.1.4) lib/rails/rack/logger.rb:38:in `call_app' railties (4.1.4) lib/rails/rack/logger.rb:20:in `block in call' activesupport (4.1.4) lib/active_support/tagged_logging.rb:68:in `block in tagged' activesupport (4.1.4) lib/active_support/tagged_logging.rb:26:in `tagged' activesupport (4.1.4) lib/active_support/tagged_logging.rb:68:in `tagged' railties (4.1.4) lib/rails/rack/logger.rb:20:in `call' actionpack (4.1.4) lib/action_dispatch/middleware/request_id.rb:21:in `call' rack (1.5.2) lib/rack/methodoverride.rb:21:in `call' rack (1.5.2) lib/rack/runtime.rb:17:in `call' activesupport (4.1.4) lib/active_support/cache/strategy/local_cache_middleware.rb:26:in `call' rack (1.5.2) lib/rack/lock.rb:17:in `call' actionpack (4.1.4) lib/action_dispatch/middleware/static.rb:64:in `call' rack (1.5.2) lib/rack/sendfile.rb:112:in `call' railties (4.1.4) lib/rails/engine.rb:514:in `call' railties (4.1.4) lib/rails/application.rb:144:in `call' rack (1.5.2) lib/rack/lock.rb:17:in `call' rack (1.5.2) lib/rack/content_length.rb:14:in `call' rack (1.5.2) lib/rack/handler/webrick.rb:60:in `service'
任何人有什么想法如何摆脱这个？
编辑：
这是我的application.css
*= require_tree .
*= require_self
*= require_ladda-themeless
*= require login_form
*= require bootstrap
*/