Role does not exist and unable to create database when using PostgreSQL

Question

I am using Heroku for my application and it requires PostgreSQL but you can still use SQLite3 for development. Since Heroku strongly advised against having 2 different datab

Answer 1

If you have a specific account/user on your machine for postgres called postgres for example.

Then executing this command will bring a prompt for you to enter a role name.

sudo -u postgres createuser --interactive

Then doing

rake db:create

Should work!