我是Ruby Rails的新手，这是我的问题。
我用这个命令创建了一个非常简单的Rails程序
rails new freelancer --database=postgresql --javascript=webpack
我没有错
在此文件中
配置-〉区域设置-〉数据库.yml
我看了两份文件
数据库：freelancer_测试数据库：自由职业者_发展
然后我运行这个命令
rails db:setup
它显示了这个错误
Is the server running locally and accepting connections on that socket? Couldn't create 'freelancer_development' database. Please check your configuration. rails aborted! ActiveRecord::ConnectionNotEstablished: connection to server on socket "/tmp/.s.PGSQL.5432" failed: No such file or directory Is the server running locally and accepting connections on that socket? Caused by: PG::ConnectionBad: connection to server on socket "/tmp/.s.PGSQL.5432" failed: No such file or directory Is the server running locally and accepting connections on that socket? Tasks: TOP => db:setup => db:create (See full trace by running task with --trace)
我认为它必须创建2个数据库自由职业者_测试和自由职业者_开发？
你能给予我一些建议吗？先谢谢你。