Qiita Teams that are logged in
You are not logged in to any team

Log in to Qiita Team
Community
OrganizationAdvent CalendarQiitadon (β)
Service
Qiita JobsQiita ZineQiita Blog
0
Help us understand the problem. What is going on with this article?
@ajikawa_

ActiveRecord::DuplicateMigrationNameError:とは?

More than 1 year has passed since last update.

ActiveRecord::DuplicateMigrationNameError:

rake db:migrateした際に下記のようなエラーが出ることがある.

rake aborted!
ActiveRecord::DuplicateMigrationNameError:

これの意味するところは,同一内容のマイグレーションファイルが二つあるよということ.
マイグレーションファイル名が異なっていてもDB構造が全く一緒なら起こった.
新しい方のマイグレーションファイルを削除し,もう一度rake db:migrateすればOK.

0
Help us understand the problem. What is going on with this article?
Why not register and get more from Qiita?
  1. We will deliver articles that match you
    By following users and tags, you can catch up information on technical fields that you are interested in as a whole
  2. you can read useful information later efficiently
    By "stocking" the articles you like, you can search right away
ajikawa_
SIer所属.学習したことの備忘録.

Comments

No comments
Sign up for free and join this conversation.
Sign Up
If you already have a Qiita account Login
0
Help us understand the problem. What is going on with this article?