Ruby 无法回滚迁移。StandardError:发生错误，所有后续迁移均已取消

我刚刚迁移了一个文件，但在def-down中，我忘了按相反的顺序放置列。迁移后架构已更新，但我无法回滚。我尝试在迁移文件中反转列顺序

class AddAttachmentPictureToHotels < ActiveRecord::Migration[5.2]
  def self.up
    change_table :hotels do |t|
      t.attachment :picture
      t.float :latitude
      t.float :longitude
      t.float :distance
    end
  end

  def self.down
    remove_attachment :hotels, :picture
    remove_float :hotels, :latitude
    remove_float :hotels, :longitude
    remove_float :hotels, :distance
  end
end

如何回滚它？

将其更改为此

  def self.down
    remove_column :hotels, :picture
    remove_column :hotels, :lattitude
    remove_column :hotels, :longitude
    remove_column :hotels, :distance
    remove_column :hotels, :picture_file_name
    remove_column :hotels, :picture_content_type
  end

---

另一方面，lattitude拼写错误，应该是latitude（纬度）

latitude（纬度）

是我的错，我做了rake db:drop db:create db:migrate，在从迁移文件中删除列后，工作正常。但是谢谢

  def self.down
    remove_column :hotels, :picture
    remove_column :hotels, :lattitude
    remove_column :hotels, :longitude
    remove_column :hotels, :distance
    remove_column :hotels, :picture_file_name
    remove_column :hotels, :picture_content_type
  end