Rake db:create 无法连接到服务器

Question

我在创建数据库时遇到了一些问题。

我的 postgresql 肯定在运行。

这是database.yml：

development:
  <<: *default
  database: name_of_database
  User: username
  Password: tototo

我收到消息：

Called from /usr/local/bundle/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:240:in `load_dependency'
could not connect to server: No such file or directory
  Is the server running locally and accepting
  connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?
/usr/local/bundle/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:651:in `initialize'
/usr/local/bundle/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:651:in `new'
[...]
/usr/local/bundle/bin/rake:17:in `<main>'
Couldn't create database for {"adapter"=>"postgresql", "encoding"=>"unicode", "pool"=>5, "database"=>"name_of_database", "User"=>"username", "Password"=>"tototo"}
could not connect to server: No such file or directory
  Is the server running locally and accepting
  connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?
[...]
/usr/local/bundle/gems/rake-12.0.0/lib/rake/application.rb:77:in `run'
/usr/local/bundle/gems/rake-12.0.0/exe/rake:27:in `<top (required)>'
/usr/local/bundle/bin/rake:17:in `load'
/usr/local/bundle/bin/rake:17:in `<main>'
Couldn't create database for {"adapter"=>"postgresql", "encoding"=>"unicode", "pool"=>5, "database"=>"name_of_database"}

我创建了赋予它所有权利的用户。

我可以使用 ID 与客户端连接到 postgresql。 我还有另一个项目成功连接到 postgres。

有人想办法解决这个问题吗？

谢谢。

Answer 1

你的 postgres 服务器可能还没有启动，试试这个

$sudo service postgresql restart

然后去你的rails项目

$rake db:setup
$rake db:seed
$rake db:migrate