我无法通过Ruby on Rails的提示创建PostgreSQL数据库

Question

你好，我试图学习Ruby On Rails，但我无法继续阅读由巴西作者 编写的一本书。

我要去步步（A，B，C，d，见下文）并正确安装POSTGRESQL

A）予正确安装红宝石。

C:\rails>ruby -v 
ruby 1.9.3p429 (2013-05-15) [i386-mingw32] 

B）我正确安装宝石。我安装了所有的宝石

C:\rails>gem -v 
2.1.11 

C）正确的轨道上。

***************************** GEM INSTALADADAS *********** 

gem install rubygems-update-1.3.1.gem 

gem install rake-0.8.4.gem 

gem install activesupport-1.4.4.gem 


gem install activesupport-2.3.2.gem 

gem install activerecord-1.15.6.gem 

gem install activerecord-2.3.2.gem 

gem install actionpack-1.13.6.gem REM *** 

gem install actionpack-2.3.2.gem 

gem install actionmailer-2.3.2.gem 

gem install actionwebservice-1.2.6.gem 

gem install activeresource-2.3.2.gem 

gem install rails-2.3.2.gem 

gem install postgres-pr-0.6.1.gem 

d）的钢轨正确安装。

C:\rails>rails -v 
Rails 2.3.2 

入门运行以下命令

cd projetos 

rails --database postgresql projeto01 

模板创建完美的网站。

当运行命令

cd\projetos\projeto01 
rake db:create 

以下错误已经出现：

ERROR 1

C:\Projetos\projeto01>rake db:create 
uninitialized constant PostgresPR::Connection::UNIXSocket 
C:/ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.2/lib/active_support/dependen 
cies.rb:105:in `rescue in const_missing' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.2/lib/active_support/dependen 
cies.rb:94:in `const_missing' 
C:/ruby/lib/ruby/gems/1.9.1/gems/postgres-pr-0.6.1/lib/postgres-pr/connection.rb 
:167:in `establish_connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/postgres-pr-0.6.1/lib/postgres-pr/connection.rb 
:51:in `initialize' 
C:/ruby/lib/ruby/gems/1.9.1/gems/postgres-pr-0.6.1/lib/postgres-pr/postgres-comp 
at.rb:23:in `new' 
C:/ruby/lib/ruby/gems/1.9.1/gems/postgres-pr-0.6.1/lib/postgres-pr/postgres-comp 
at.rb:23:in `initialize' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/postgresql_adapter.rb:916:in `new' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/postgresql_adapter.rb:916:in `connect' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/postgresql_adapter.rb:210:in `initialize' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/postgresql_adapter.rb:37:in `new' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/postgresql_adapter.rb:37:in `postgresql_connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:223:in `new_connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:245:in `checkout_new_connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:188:in `block (2 levels) in checkout' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:184:in `loop' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:184:in `block in checkout' 
C:/ruby/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:183:in `checkout' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:98:in `connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:326:in `retrieve_connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_specification.rb:123:in `retrieve_connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_specification.rb:115:in `connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/tasks/databases.rake:70:in `res 
cue in create_database' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/tasks/databases.rake:35:in `cre 
ate_database' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/tasks/databases.rake:31:in `blo 
ck (2 levels) in <top (required)>' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/task.rb:236:in `call' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/task.rb:236:in `block in e 
xecute' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/task.rb:231:in `each' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/task.rb:231:in `execute' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/task.rb:175:in `block in i 
nvoke_with_call_chain' 
C:/ruby/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/task.rb:168:in `invoke_wit 
h_call_chain' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/task.rb:161:in `invoke' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:149:in `inv 
oke_task' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:106:in `blo 
ck (2 levels) in top_level' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:106:in `eac 
h' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:106:in `blo 
ck in top_level' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:115:in `run 
_with_threads' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:100:in `top 
_level' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:78:in `bloc 
k in run' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:165:in `sta 
ndard_exception_handling' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:75:in `run' 

C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/bin/rake:33:in `<top (required)>' 
C:/ruby/bin/rake:23:in `load' 
C:/ruby/bin/rake:23:in `<main>' 
Couldn't create database for {"adapter"=>"postgresql", "encoding"=>"UTF-8", "dat 
abase"=>"projeto01_development", "pool"=>5, "username"=>"exercicio_livro", "pass 
word"=>"rails"} 

C:\Projetos\projeto01>rake db:create 
uninitialized constant PostgresPR::Connection::UNIXSocket 
C:/ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.2/lib/active_support/dependen 
cies.rb:105:in `rescue in const_missing' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.2/lib/active_support/dependen 
cies.rb:94:in `const_missing' 
C:/ruby/lib/ruby/gems/1.9.1/gems/postgres-pr-0.6.1/lib/postgres-pr/connection.rb 
:167:in `establish_connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/postgres-pr-0.6.1/lib/postgres-pr/connection.rb 
:51:in `initialize' 
C:/ruby/lib/ruby/gems/1.9.1/gems/postgres-pr-0.6.1/lib/postgres-pr/postgres-comp 
at.rb:23:in `new' 
C:/ruby/lib/ruby/gems/1.9.1/gems/postgres-pr-0.6.1/lib/postgres-pr/postgres-comp 
at.rb:23:in `initialize' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/postgresql_adapter.rb:916:in `new' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/postgresql_adapter.rb:916:in `connect' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/postgresql_adapter.rb:210:in `initialize' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/postgresql_adapter.rb:37:in `new' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/postgresql_adapter.rb:37:in `postgresql_connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:223:in `new_connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:245:in `checkout_new_connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:188:in `block (2 levels) in checkout' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:184:in `loop' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:184:in `block in checkout' 
C:/ruby/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:183:in `checkout' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:98:in `connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_pool.rb:326:in `retrieve_connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_specification.rb:123:in `retrieve_connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/activerecord-2.3.2/lib/active_record/connection 
_adapters/abstract/connection_specification.rb:115:in `connection' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/tasks/databases.rake:70:in `res 
cue in create_database' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/tasks/databases.rake:35:in `cre 
ate_database' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rails-2.3.2/lib/tasks/databases.rake:31:in `blo 
ck (2 levels) in <top (required)>' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/task.rb:236:in `call' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/task.rb:236:in `block in e 
xecute' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/task.rb:231:in `each' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/task.rb:231:in `execute' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/task.rb:175:in `block in i 
nvoke_with_call_chain' 
C:/ruby/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/task.rb:168:in `invoke_wit 
h_call_chain' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/task.rb:161:in `invoke' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:149:in `inv 
oke_task' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:106:in `blo 
ck (2 levels) in top_level' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:106:in `eac 
h' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:106:in `blo 
ck in top_level' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:115:in `run 
_with_threads' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:100:in `top 
_level' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:78:in `bloc 
k in run' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:165:in `sta 
ndard_exception_handling' 
C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/lib/rake/application.rb:75:in `run' 

C:/ruby/lib/ruby/gems/1.9.1/gems/rake-10.1.1/bin/rake:33:in `<top (required)>' 
C:/ruby/bin/rake:23:in `load' 
C:/ruby/bin/rake:23:in `<main>' 
Couldn't create database for {"adapter"=>"postgresql", "encoding"=>"UTF-8", "dat 
abase"=>"projeto01_development", "pool"=>5, "username"=>"exercicio_livro", "pass 
word"=>"rails"} 

C:\Projetos\projeto01 

ERROR 2

C:\Projetos\projeto01> ruby script/server 
C:/ruby/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:55:in `requ 
ire': cannot load such file -- script/../config/boot (LoadError) 
     from C:/ruby/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.r 
b:55:in `require' 
     from script/server:2:in `<main>' 

Answer 1

你postgres-pr gem在你的Gemfile中，据我所知Rails不再支持，用pg代替gem。