diff --git a/app/controllers/question_banks_controller.rb b/app/controllers/question_banks_controller.rb
index e30065d09..8f295fa95 100644
--- a/app/controllers/question_banks_controller.rb
+++ b/app/controllers/question_banks_controller.rb
@@ -147,15 +147,17 @@ class QuestionBanksController < ApplicationController
         new_homework.homework_detail_group.base_on_project = homework.base_on_project
       end
       # 附件
+      logger.info("######attachments: #{homework.attachments.count}")
       homework.attachments.try(:each) do |attachment|
         att = attachment.copy
         att.container_id = nil
         att.container_type = nil
         att.author_id = homework.user_id
         att.copy_from = attachment.id
-        att.save
+        att.save!
         new_homework.attachments << att
       end
+      logger.info("######new_homework.attachments: #{new_homework.attachments.count}")
 
       if new_homework.save
         new_homework_detail_manual.save if new_homework_detail_manual