what is the meaning of the pg_dump and pg_restore errors

问题

While I trying to upload database to the heroku, I hav eget this errors env: pg_dump: no such file or directory and env: pg_restore no such file and directory. What is the meaning of the this errors ? How can I fix these errors to load database to the heroku ?

回答1:

Are you using the :sql dump_format instead of schema.rb?

If so, see your solution here: Error when doing rake db:migrate on Heroku

回答2:

I just encountered the same errors using pg_transfer. Turns out that the postgresql client tools weren't installed. You can install them with:

sudo apt-get install postgresql-client

来源：https://stackoverflow.com/questions/16760059/what-is-the-meaning-of-the-pg-dump-and-pg-restore-errors