[Rails] When deploying Heroku you can't define an already defined column'''Coping method

I didn't notice it when developing in the local environment, but I had various problems when deploying heroku, so I will write it as a memorandum.

The beginning of the matter

I got this error and couldn't migrate.

rails aborted!
StandardError: An error has occurred, this and all later migrations canceled:
you can't define an already defined column 'name'.

Try resetting the database once

Reset the database once and re-migrate.

• Please note that all the contents of the database will be deleted! If you are in trouble because the data disappears, do not execute it!

$ rails db:migrate:reset

And again my great

$ rails db:migrate

Then, I got this error.

StandardError: An error has occurred, this and all later migrations canceled:

PG::UndefinedColumn: ERROR:  column "user_id" of relation "scores" does not exist

I am migrating in the order of the time stamps, but I got an error at a certain migrating file. There were various problems, but the big problem was that there was a migration file that tried to reomove a column that did not exist. I deleted it and ran the migration again and it worked fine.