当我在没有AJAX的情况下呈现这个部分时它工作正常但是当我使用AJAX调用渲染它时，我得到以下异常。
我做错了什么？
ActionView::Template::Error (No route matches {:action=>"destroy", :followerid=>1, :follower_type=>"topic", :controller=>"follows", :discussion_id=>91}):
2: <% discussion.followers.each do |topic| %>
3: <% if topic.is_a? Topic%>
4: <h3><%= render :partial => '/shared/topic_item', :locals => { :topic => topic }%></h3>
5: <%= button_to("unTag", discussion_follow_path(discussion.id, :follower_type => "topic", :followerid => topic.id ), :method => :delete, :remote =>true) %>
6: <%end%>
7: <%end%>
app / views / discussion / _edit_topics.html.erb：5：in _app_views_discussions__edit_topics_html_erb__847854145_2171200660_7386124'
app/views/discussions/_edit_topics.html.erb:2:in each'
app / views / discussion / _edit_topics.html.erb：2：in _app_views_discussions__edit_topics_html_erb__847854145_2171200660_7386124'
app/views/follows/create.js.erb:9:in _ app_views_follows_create_js_erb__1164388053_2171521760_0'