我正在尝试按照steps listed here让PostGIS在0SX 10.8 Mountain Lion上使用Postgresql和Django。但是，当我进入第6步：createdb -U USERNAME -E utf8 geodjango时出现错误：
createdb: could not connect to database postgres: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/var/pgsql_socket/.s.PGSQL.5432"?
如何在此处继续安装过程？这是正确的方法吗？谢谢你的想法！