Troubleshooting

The API cannot connect to the DB.

Make sure Postgres is installed and running. On Windows, use the Task Manager and in the Services pane look for a services called postgres-x64-17. It's status must be running. On Linux, use systemctl.

Make sure Postgres is using port 5432. If you've upgraded Postgres from an earlier version, the port could have changed. Check that your postgresql.conf config, which on Windows is at C:\Program Files\PostgreSQL\17\data, contains this line:

port = 5432 # (change requires restart)

Change indeed requires restart. On Windows, right-clich on the Service in Task Manager and press Restart.