nil：NilClass的未定义方法'total_pages'>>

Question

运行分页代码时出现此错误：

undefined method `total_pages' for nil:NilClass
我听不懂，也许你可以帮我吗？

products_controller.rb

@products = Product.order(:nome).page params[:page]
página：

<ul class="product-evaluation-rating">
    <% avaliacao.questionario_respostas.approved.rated_questions.each do |answer| %>
    <li class="product-evaluation-rating-item">
    <%= answer.questionario_pergunta.custom_question %>
    <%= content_tag :p, class: (answer.questionario_pergunta.custom_question == 'recomendaria' ? 'strong' : nil) do %>
    <%= answer.custom_answer %>
    <% end %>
    </li>
    <% end%>
    </ul>
    <%= paginate @products %>

kaminari_config.rb:
    # frozen_string_literal: true
    Kaminari.configure do |config| 
    # config.default_per_page = 25
    # config.max_per_page = nil
    # config.window = 4
    # config.outer_window = 0
    # config.left = 0
    # config.right = 0
    # config.page_method_name = :page
    # config.param_name = :page
    # config.params_on_first_page = false
    end

运行分页代码时出现此错误：nil：NilClass的未定义方法`total_pages'，我听不懂，也许您可​​以帮我吗？ products_controller.rb @products = Product.order（：nome）....

Answer 1

[当我使用will_paginate gem时，我猜您正在使用