psql: FATAL: Peer authentication failed for user “dev”

Question

when i create a new user, but it cannot login the database.
I do that like this:

postgres@Aspire:/home/XXX$ createuser dev
Shall the new role be a superu         


        

Answer 1

In my case I was using different port. Default is 5432. I was using 5433. This worked for me:

$ psql -f update_table.sql -d db_name -U db_user_name -h 127.0.0.1 -p 5433