heroku db:push showing invalid database url

Question

I am trying to push data to a heroku app by using

heroku db:push

but it is spitting out this error:

root@ubuntu-lappy:~/rails/soft$ heroku db:push 
Invalid database url

any clue regarding this? my taps installation went fine because I was able to push the DB out before.

Is there something in particular I should be looking at?

EDIT: If you are looking for answer to this problem then you are better off providing the freaking URL yourself. Answered in this question

Answer 1

yes, make sure you are in the project root, I just ran into this problem as well

Answer 2

You need to have a database.yml file in your config directory so it knows what database to push from.

Answer 3

You can try to specify the db name, login and password using that format: heroku db:push postgres://username:password@localhost/myrailsdb