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我对 ruby​​ 和 postgresql 很陌生。
当我尝试跑步时

ruby scrpit/server, rake db:migrate, rake db:seed  

我明白了。

Rails 2.3.11 application starting on http:/0.0.0.0:3000  
warning: already initialized constant SESSION_SECRET  
Faraday: you may want to install system_timer for reliable timeouts  
/home/user/.rvm/gems/ruby-1.8.7-p371/gems/activerecord-.3.11/lib/active_record/connection_adapters/postgresql_adapter.rb:941:in `initialize': could not connect to server: Connection refused (PGError)  

Is the server running on host "localhost" (127.0.0.1) and accepting  
TCP/IP connections on port 5432?  

我在 ubuntu 12.04、ruby 1.8.7、rails-2.3、gem 1.5.3

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1 回答 1

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这是你应该做的:

验证 postgres 服务器是否实际运行

$ netstat -a | grep postgre

psql如果它正在运行,请尝试使用命令从终端连接到它。以防它,不运行。尝试手动启动它

pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start

如果仍然无法启动,server.log 中是否有任何错误消息?如果是,请在此处发布。

祝你好运!

于 2013-04-27T20:51:07.800 回答