Migrations are pending. To resolve this issue, run: bin/rake db:migrate RAILS_ENV=development error when running as server

Question

I have tried to run as a server before and it worked well, I don't change anything in the database but when I tried to run again a have this message Migrations are pending. To resolve this issue, run: bin/rake db:migrate RAILS_ENV=development

i tried as this site link but it failed any help please i am a beginner in ruby on rails

What happens when you run the command? (bin/rake db:migrate RAILS_ENV=development) — Bastien Léonard, Aug 18 '15 at 20:37
rake aborted! ActiveRecord::DuplicatedMigrationNameError: Multiple migrations have the name create comments — miro, Aug 18 '15 at 20:44

score 1 · Accepted Answer · answered Aug 18 '15 at 21:02

1

Migration files live in the db/migrate directory, and their names look like this:

20150121164407_create_comments.rb

From your comment, it looks like inside your db/migrate directory, you have several migrations with the same “basic” name create_comments (and probably different timestamps). You need to remove one of those duplicated files.

answered Aug 18 '15 at 21:02

Bastien Léonard

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thanks a lot i have found two files with the same name – miro Aug 18 '15 at 21:07

score 0 · Answer 2 · answered Aug 18 '15 at 20:59

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If you did and if you don't have any important data in the database, you should destroy your database and recreate it using existing migrations. These commands in this order:
$ rake db:drop
if you're using postgres
$ rake db:create
and finally remigrate
$ rake db:migrate

answered Aug 18 '15 at 20:59

Konstantin Plyusnin

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haven't seen comments while was writing answer. so that was just duplicated names – Konstantin Plyusnin Aug 18 '15 at 21:15

Migrations are pending. To resolve this issue, run: bin/rake db:migrate RAILS_ENV=development error when running as server

2 Answers2