Is the server running on host "localhost" (::1) and accepting TCP/IP connections on port 5432?
postgresql
Solution
Wild stab in the dark: You're on a machine with an IPv6 resolver where `localhost` defaults to the IPv6 address `::1`, but `listen_addresses` in `postgresql.conf` is set to `127.0.0.1` or `0.0.0.0` not `*` or you're using an older PostgreSQL built with a C library that doesn't have transparent IPv6 support.
Change `listen_addresses` to `localhost` and make sure `localhost` resolves to both the IPv4 and IPv6 addresses, or set it to `::1, 127.0.0.1` to explicitly specify both IPv4 and IPv6. Or just set it to `*` to listen on all interfaces. Alternately, if you don't care about IPv6, connect to `127.0.0.1` instead of `localhost`.
See this Google search or this Stack Overflow search for more information.
(Posting despite my close-vote because I voted the question for migration).
Problem
I'm working on Django. I use PostgreSQL database. Full error says: ``` could not connect to server: Connection refused (0x0000274D/10061) Is the server running on host "localhost" (::1) and accepting TCP/IP connections on port 5432? ``` Do you have any idea?