i click on the delete button and get a 'template is missing...' error

<h1><%= @todo_list.title %></h1>

<ul class="todo_items">
    <% @todo_list.todo_items.each do |todo_item| %>
    <li id="<%= dom_id(todo_item) %>">
        <%= todo_item.content %>
        <%= link_to "Edit", edit_todo_list_todo_item_path(todo_item) %>
        <%= link_to "Delete", todo_list_todo_item_path(todo_item), method: :delete, data: { confirm: "Are you sure?" } %>
    </li>
    <% end %>
</ul>

<p>
    <%= link_to "New Todo Item", new_todo_list_todo_item_path %>
</p>

<p id="notice"><%= notice %></p>

<h1>Listing Todo Lists</h1>

<table>
  <thead>
    <tr>
      <th>Title</th>
      <th>Description</th>
      <th colspan="3"></th>
    </tr>
  </thead>

  <tbody>
    <% @todo_lists.each do |todo_list| %>
      <tr id="<%= dom_id(todo_list) %>">
        <td><%= todo_list.title %></td>
        <td><%= todo_list.description %></td>
        <td>
          <%= link_to "List Items", todo_list_todo_items_path(todo_list) %>
          <%= link_to 'Show', todo_list %>
          <%= link_to 'Edit', edit_todo_list_path(todo_list) %>
          <%= link_to 'Destroy', todo_list, method: :delete, data: { confirm: 'Are you sure?' } %>
        </td>
      </tr>
    <% end %>
  </tbody>
</table>

<br>

<%= link_to 'New Todo list', new_todo_list_path %>

  def destroy
    @todo_item = @todo_list.todo_items.find(params[:id])
    if @todo_item.destroy
      flash[:success] = "Todo list item was deleted."
    else
      flash[:error] = "Todo list item could not be deleted."
    end
    redirect_to todo_list_todo_items_path
  end

require "spec_helper"

describe TodoListsController do
  describe "routing" do

    it "routes to #index" do
      get("/todo_lists").should route_to("todo_lists#index")
    end

    it "routes to #new" do
      get("/todo_lists/new").should route_to("todo_lists#new")
    end

    it "routes to #show" do
      get("/todo_lists/1").should route_to("todo_lists#show", :id => "1")
    end

    it "routes to #edit" do
      get("/todo_lists/1/edit").should route_to("todo_lists#edit", :id => "1")
    end

    it "routes to #create" do
      post("/todo_lists").should route_to("todo_lists#create")
    end

    it "routes to #update" do
      put("/todo_lists/1").should route_to("todo_lists#update", :id => "1")
    end

    it "routes to #destroy" do
      delete("/todo_lists/1").should route_to("todo_lists#destroy", :id => "1")
    end

  end
end

Rails.application.routes.draw do

  resources :todo_lists do 
    resources :todo_items
  end
  root 'todo_lists#index'
  # The priority is based upon order of creation: first created -> highest priority.
  # See how all your routes lay out with "rake routes".

  # You can have the root of your site routed with "root"
  # root 'welcome#index'

  # Example of regular route:
  #   get 'products/:id' => 'catalog#view'

  # Example of named route that can be invoked with purchase_url(id: product.id)
  #   get 'products/:id/purchase' => 'catalog#purchase', as: :purchase

  # Example resource route (maps HTTP verbs to controller actions automatically):
  #   resources :products

  # Example resource route with options:
  #   resources :products do
  #     member do
  #       get 'short'
  #       post 'toggle'
  #     end
  #
  #     collection do
  #       get 'sold'
  #     end
  #   end

  # Example resource route with sub-resources:
  #   resources :products do
  #     resources :comments, :sales
  #     resource :seller
  #   end

  # Example resource route with more complex sub-resources:
  #   resources :products do
  #     resources :comments
  #     resources :sales do
  #       get 'recent', on: :collection
  #     end
  #   end

  # Example resource route with concerns:
  #   concern :toggleable do
  #     post 'toggle'
  #   end
  #   resources :posts, concerns: :toggleable
  #   resources :photos, concerns: :toggleable

  # Example resource route within a namespace:
  #   namespace :admin do
  #     # Directs /admin/products/* to Admin::ProductsController
  #     # (app/controllers/admin/products_controller.rb)
  #     resources :products
  #   end
end