I ran into an issue today while trying to install Postgresql on OSX Lion. I followed the excellent documentation on this site – basically doing:
brew install postgresql
Then starting it with
postgres -D /usr/local/var/postgres
This all went great and my database was up and running! Only problem was when I tried to run a migration against my local instance – I got a page full of errors including:
could not connect to server: Permission denied
Is the server running locally and accepting
connections on Unix domain socket “/var/pgsql_socket/.s.PGSQL.5432”?
Luckily someone has already solved this problem. I followed the instructions on that site (which looked very promising), but I was still stuck with the same problem.
Lucky for me someone in the comments mentioned an additional step you might need to run if you have already run bundler:
gem uninstall pg
gem install pg
Hopefully this will help someone with the same problem. Happy coding.