呈现布局和视图,rails

Rendering both layout and view, rails

我有下一个错误:Render and/or redirect were called multiple times in this action. Please note that you may only call render OR redirect

这里

respond_to do |format|
            format.html {
                render layout:"productView"
                render "show2"

            }
          ajax_respond format, :section_id => "user_tab_comments"           
            format.js
        end

所以我想渲染布局和视图,我做错了什么?

像这样使用而不是双重渲染:

   render :show2, layout: 'productView'

布局页面应该在app/views/layouts/下希望它有效。