psql: could not connect to server: No such file or directory
 Is the server running locally and accepting

• 用brew解除安裝postgresql： brew uninstall postgresql
• brew doctor （修正這裡的一切）
• brew prune

• 刪除所有Postgres資料夾：

  • rm -r /usr/local/var/postgres
  • rm -r /Users/<username>/Library/Application\ Support/Postgres

• 用brew重新安裝postgresql： brew install postgresql

• 啟動伺服器： brew services start postgresql