我最近安装了ubuntu并从brew中下载了postgres，但是当尝试进入psql时出现此错误：
psql: error: could not connect to server: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
我尝试了其他静脉曲张，但没有成功，谁能帮忙