Rails 3.2在application.css预编译时出现sass错误

Question

升级到rails 3.2后，我在rake assets:precompile

上收到此错误

Invalid CSS after "*": expected "{", was "html .fileinput..."

这里是跟踪：http://paste.ubuntu.com/1285319/

application.css几乎是默认值：

/*
 * This is a manifest file that'll automatically include all the stylesheets available in this directory
 * and any sub-directories. You're free to add application-wide styles to this file and they'll appear at
 * the top of the compiled file, but it's generally better to create a new file per style scope.
 *= require_self 
 *= require_tree . 
*/

显然它不喜欢CSS中的注释，是否在SASS或Rails中有一些我没有注意到的变化？

以下是sass的版本：

sass (3.2.1)
sass-rails (3.2.5)
  railties (~> 3.2.0)
  sass (>= 3.1.10)
  tilt (~> 1.3)

Answer 1

错误是由jquery.fileupload-ui.css中的这一行引起的（jQuery文件上传UI插件CSS 6.3）

/* Fix for IE 6: */
*html .fileinput-button {
  line-height: 22px;
  margin: 1px -3px 0 0;
}