小编Non*_*ona的帖子

所以我有一个在 Heroku 上运行的 Rails 5.0.x 应用程序和 Postgres 9.6.1。我拉下来做一个pg_restore --exit-on-error --verbose --clean --no-acl --no-owner -h localhost -d database_development ~/Documents/Backups/myproduction.dump

我收到以下错误：

pg_restore: connecting to database for restore
pg_restore: dropping FK CONSTRAINT trial_versions fk_rails_f888baa05c
pg_restore: [archiver (db)] Error while PROCESSING TOC:
pg_restore: [archiver (db)] Error from TOC entry 3091; 2606 16768 FK CONSTRAINT trial_versions fk_rails_f888baa05c u7dok58iar41mh
pg_restore: [archiver (db)] could not execute query: ERROR:  constraint "fk_rails_f888baa05c" of relation "trial_versions" does not exist
    Command was: ALTER TABLE ONLY "public"."trial_versions" DROP CONSTRAINT "fk_rails_f888baa05c";

这个错误告诉我什么？我以前从未遇到过这个问题。这最近才开始发生，我需要先了解错误，然后才能开始对其进行故障排除。