ActionView :: Helpers :: AssetTagHelper：Module的未定义方法`javascript_expansions'

Question

  

可能重复：
  After upgrading to Rails 3.1.1: “undefined method `javascript_expansions'” error

我在tinymce中使用activescaffold与rails 3.2，我收到此错误：

undefined method `javascript_expansions' for ActionView::Helpers::AssetTagHelper:Module