尝试在Windows上安装Postgres以用于现有Rails项目时出错

在本地安装Postgres后,我执行了以下操作:

gem install postgres-pr

我更改了数据库。YML:

development:
  adapter: postgresql 
  encoding: unicode 
  database: typhoon_development 
  pool: 5 

然后,当我执行rake db:create时得到:

uninitialized constant PostgresPR::Connection::UNIXSocket
Couldn't create database for {"encoding"=>"unicode", "adapter"=>"postgresql", "database"=>"typhoon_development", "p
ool"=>5}

我在当地做这件事是为了模仿苍鹭的环境。