Railsでコメント機能を追加した際にでたエラーについて

<p><%= flash[:notice] %></p>

<div class="container">
  <div class="row">
    <div class="col-md-3">
      <%= render'book',{ user: @book.user,  book: @book_new } %>
    </div>
    <div class="col-md-8 offset-md-1">
      <h2>Book detail</h2>
      <table class="table">
        <tbody>
          <tr>
            <td>
              <%= link_to user_path(@book.user.id) do %>
              <%= image_tag @book.user.get_profile_image(100,100) %><br><%= @book.user.name %>
              <% end %>
            </td>
            <td>
              <%= link_to @book.title, book_path(@book) %>
            </td>
            <td>
              <%= @book.body %>
            </td>

            <% if @book.user == current_user %>
              <td>
                <%= link_to "Edit", edit_book_path(@book.id), class:'btn btn-sm btn-success'%>
              </td>
              <td>
                <%= link_to "Destroy", book_path(@book.id), method: :delete, "date-confirm" => "本当に消しますか？", class:'btn btn-sm btn-danger' %>
              </td>
            <% end %>
          </tr>
        </tbody>
      </table>
    </div>
  </div>
</div>

<div>
  <p>コメント件数：<%= @book.book_comments.count %></p>
  
  <% @book.book_comments.each do |book_comment| %>
    <p><%= image_tag book_comment.user.get_profile_image(100,100) %></p>
    <%= book_comment.user.name %>
    
    <% if book_comment.user == current_user %>
      <%= link_to "削除", book_comment_path(book_comment, book_comment), method: :delete %>
    <% end %>
  
  <% end %>
</div>
<div>
  <%= form_with model: [@book, @book_comment] do |f| %>
    <%= f.text_area :comment, rows: '5' %>
    <%= f.submit "送信する" %>
  <% end %>
</div>

class BookCommentsController < ApplicationController
  
  def create
    book = Book.find(params[:book_id])
    comment = current_user.book_comments.new(book_comment_params)
    comment.book_id = book.id
    comment.save
    redirect_to book_path(book.id)
  end
  
  def destroy
     BookComment.find(params[:id]).destroy
    redirect_to book_path(params[:book_id])
  end
  
  
  private

  def book_comment_params
    params.require(:book_comment).permit(:comment)
  end
 
end







class BooksController < ApplicationController
  before_action :correct_user, only: [:edit, :update]

  def  create
    @book = Book.new(books_params)
    @book.user_id = current_user.id
   if @book.save
      flash[:notice] = "You have created book successfully."
      redirect_to book_path(@book.id)
   else
      @user = current_user
      @books = Book.all
      render :index
   end
  end

  def index
    @books = Book.all
    @book = Book.new
    @user = current_user
  end

  def show
    @book_new = Book.new
    @book = Book.find(params[:id])
    @book_comment = BookComment.new
  end
  

  def edit
     @book = Book.find(params[:id])
  end

  def destroy
    book = Book.find(params[:id])
    book.destroy
    redirect_to books_path
  end

  def update
    @book = Book.find(params[:id])
    if @book.update(books_params)
       flash[:notice] = "You have updated book successfully."
       redirect_to book_path(@book.id)
    else
       render :edit
    end
  end


  private

  def books_params
    params.require(:book).permit(:title, :body)
  end

  def correct_user
    @book = Book.find(params[:id])
    @user = @book.user
    redirect_to books_path unless @user == current_user
  end
end