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Я использую Ruby on rails в Ubuntu. Когда я переношу базу данных, я получаю эту ошибку.

 **== 20200722084445 CreateDoorkeeperApplication: migrating ====================== rake aborted! StandardError: An error has occurred, all later migrations canceled: undefined method `parent_name' for MinatoBackend::Application:Class /home/lcongduy/tn-minato/db/migrate/20200722084445_create_doorkeeper_application.rb:3:in `change' Caused by: NoMethodError: undefined method `parent_name' for MinatoBackend::Application:Class /home/lcongduy/tn-minato/db/migrate/20200722084445_create_doorkeeper_application.rb:3:in `change' Tasks: TOP =gt; db:migrate (See full trace by running task with --trace)**  

Это миграция, которая вызвала ошибку:

 class CreateDoorkeeperApplication lt; ActiveRecord::Migration[6.0]  def change  Doorkeeper::Application.create(name: Rails.application.class.parent_name, redirect_uri: "urn:ietf:wg:oauth:2.0:oob", scopes: ["read", "write"])  end end  

Спасибо всем вам за то, что посмотрели на мою ошибку.