Ruby on rails 无法使用'；bundle exec rake db:migrate'；windows 8上的命令_Ruby On Rails_Ruby_Postgresql_Rake

Ruby on rails 无法使用'；bundle exec rake db:migrate'；windows 8上的命令

ruby-on-rails ruby postgresql

Ruby on rails 无法使用'；bundle exec rake db:migrate'；windows 8上的命令,ruby-on-rails,ruby,postgresql,rake,Ruby On Rails,Ruby,Postgresql,Rake,我已经阅读了50页的“RubyonRails教程”，它指示我运行bundleexecrakedb:migrate命令。当我这样做的时候，我得到了下面的答案。我不知道使用--trace运行命令是否会提供任何有用的信息这似乎与使用postgresql有关，但从那以后我就完全不知所措了我该怎么做才能让它工作非常感谢 C:\Sites\rails_projects\demo_app>bundle exec rake db:migrate rake aborted! PG::Connectio

我已经阅读了50页的“RubyonRails教程”，它指示我运行bundleexecrakedb:migrate命令。当我这样做的时候，我得到了下面的答案。我不知道使用--trace运行命令是否会提供任何有用的信息

这似乎与使用postgresql有关，但从那以后我就完全不知所措了

我该怎么做才能让它工作

非常感谢

C:\Sites\rails_projects\demo_app>bundle exec rake db:migrate
rake aborted!
PG::ConnectionBad: could not connect to server: Connection refused (0x0000274D/1
0061)
        Is the server running on host "localhost" (::1) and accepting
        TCP/IP connections on port 5432?

Tasks: TOP => db:migrate
(See full trace by running task with --trace)

C:\Sites\rails_projects\demo_app>bundle exec rake db:migrate --trace
** Invoke db:migrate (first_time)
** Invoke environment (first_time)
** Execute environment
** Invoke db:load_config (first_time)
** Execute db:load_config
** Execute db:migrate
rake aborted!
PG::ConnectionBad: could not connect to server: Connection refused (0x0000274D/1
0061)
        Is the server running on host "localhost" (::1) and accepting
        TCP/IP connections on port 5432?
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/postgresql_adapter.rb:831:in `initialize'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/postgresql_adapter.rb:831:in `new'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/postgresql_adapter.rb:831:in `connect'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/postgresql_adapter.rb:548:in `initialize'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/postgresql_adapter.rb:41:in `new'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/postgresql_adapter.rb:41:in `postgresql_connection
'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:440:in `new_connection
'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:450:in `checkout_new_c
onnection'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:421:in `acquire_connec
tion'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:356:in `block in check
out'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:355:in `checkout'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:265:in `block in conne
ction'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:264:in `connection'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:546:in `retrieve_conne
ction'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_handling.rb:79:in `retrieve_connection'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_handling.rb:53:in `connection'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/migration.rb:863:in `initialize'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/migration.rb:764:in `new'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/migration.rb:764:in `up'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/migration.rb:742:in `migrate'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/railties/databases.rake:42:in `block (2 levels) in <top (required)>'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.r
b:240:in `call'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.r
b:240:in `block in execute'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.r
b:235:in `each'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.r
b:235:in `execute'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.r
b:179:in `block in invoke_with_call_chain'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.r
b:172:in `invoke_with_call_chain'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.r
b:165:in `invoke'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/applic
ation.rb:150:in `invoke_task'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/applic
ation.rb:106:in `block (2 levels) in top_level'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/applic
ation.rb:106:in `each'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/applic
ation.rb:106:in `block in top_level'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/applic
ation.rb:115:in `run_with_threads'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/applic
ation.rb:100:in `top_level'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/applic
ation.rb:78:in `block in run'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/applic
ation.rb:176:in `standard_exception_handling'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/applic
ation.rb:75:in `run'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/bin/rake:33:in
`<top (required)>'
C:/RailsInstaller/Ruby1.9.3/bin/rake:23:in `load'
C:/RailsInstaller/Ruby1.9.3/bin/rake:23:in `<main>'
Tasks: TOP => db:migrate

C:\Sites\rails\u projects\demo\u app>bundle exec rake db:migrate
雷克流产了！
PG:：ConnectionBad:无法连接到服务器：连接被拒绝（0x0000274D/1
0061)
服务器是否在主机“localhost”（：：1）上运行并接受
端口5432上的TCP/IP连接？
任务：TOP=>db:migrate
（通过使用--trace运行任务查看完整跟踪）
C:\Sites\rails\u projects\demo\u app>bundle exec rake db:migrate--trace
**调用数据库：迁移（第一次）
**调用环境（第一次）
**执行环境
**调用数据库：加载配置（第一次）
**执行db:load\u config
**执行数据库：迁移
雷克流产了！
PG:：ConnectionBad:无法连接到服务器：连接被拒绝（0x0000274D/1
0061)
服务器是否在主机“localhost”（：：1）上运行并接受
端口5432上的TCP/IP连接？
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/postgresql_adapter.rb:831:in'initialize'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/postgresql_adapter.rb:831:in'new'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/postgresql_adapter.rb:831:in'connect'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/postgresql_adapter.rb:548:in'initialize'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/postgresql_adapter.rb:41:in'new'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/postgresql_adapter.rb:41:in`postgresql_connection
'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:440:in`new_connection'
'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:450:in'checkout_new_c
连接'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:421:in'acquire_connec
蒂翁
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:356:in`block in check
出局
C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/monitor.rb:211:in'mon_synchronize'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:355:in'checkout'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:265:in`block in conne
行动'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/monitor.rb:211:in'mon_synchronize'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:264:in'connection'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/connection_adapters/abstract/connection_pool.rb:546:in`retrieve_conne'
行动'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_记录/连接处理。rb:79:“检索连接”
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_记录/连接处理。rb:53:in'connection'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/migration.rb:863:in'initialize'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/migration.rb:764:in'new'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/migration.rb:764:in'up'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_record/migration.rb:742:in'migrate'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-4.0.2/lib/acti
ve_记录/铁路/数据库。rake:42:in‘block（2层）in’
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.r
b:240:在“通话”中
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.r
b:240:在“执行中的块”中
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.r
b:235:在“每个”中
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.r
b:235:在“执行”中
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.r
b:179:in`block in invoke_with_call_chain'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/monitor.rb:211:in'mon_synchronize'
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.r
b:172:在“调用”中使用“调用链”
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.r
b:165:invoke中的
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/applic
action.rb:150:in“invoke_task”
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/applic
注释：rb:106：在“顶层中的块（2层）”中
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/applic
注释：rb:106：在“每个”中
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/applic
注释：rb:106：在“顶层中的块”
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rake-10.2.2/lib/rake/applic
ation.rb:115:in'run_with_threads'
C:/RailsInstaller/Ruby1.9.3/lib/ruby
group :production do
  gem 'pg', '0.12.2'
end