Ruby on rails 轨道工头安装协助

所以我对rails之类的东西很陌生，在过去的几个小时里我一直在尝试安装它，当我试图运行

rails s

，或者如果我尝试使用

rails g forem:install安装它时，出现了以下错误

/usr/lib64/ruby/gems/1.8/gems/activesupport-3.2.11/lib/active\u support/dependencies.rb:245:in
`加载“：/home/forem/config/initializers/session_store.rb:3:语法
错误，意外的“：”，应为$end（SyntaxError）
：cookie\u存储，键：'\u论坛\u会话'
^
来自/usr/lib64/ruby/gems/1.8/gems/activesupport-3.2.11/lib/active\u support/dependencies.rb:245:in

load'
from/usr/lib64/ruby/gems/1.8/gems/activesupport-3.2.11/lib/active\u support/dependencies.rb:236:in
加载依赖项'
来自/usr/lib64/ruby/gems/1.8/gems/activesupport-3.2.11/lib/active\u support/dependencies.rb:245:in
load'
from/usr/lib64/ruby/gems/1.8/gems/railties-3.2.11/lib/rails/engine.rb:588
from/usr/lib64/ruby/gems/1.8/gems/railties-3.2.11/lib/rails/engine.rb:587:in
每个
from/usr/lib64/ruby/gems/1.8/gems/railties-3.2.11/lib/rails/engine.rb:587
from/usr/lib64/ruby/gems/1.8/gems/railties-3.2.11/lib/rails/initializable.rb:30:in
instance\u exec'
from/usr/lib64/ruby/gems/1.8/gems/railties-3.2.11/lib/rails/initializable.rb:30:in
run'
from/usr/lib64/ruby/gems/1.8/gems/railties-3.2.11/lib/rails/initializable.rb:55:in
运行_初始化程序'
from/usr/lib64/ruby/gems/1.8/gems/railties-3.2.11/lib/rails/initializable.rb:54:in
每个
from/usr/lib64/ruby/gems/1.8/gems/railties-3.2.11/lib/rails/initializable.rb:54:in
运行_初始化程序'
from/usr/lib64/ruby/gems/1.8/gems/railties-3.2.11/lib/rails/application.rb:136:in
initialize！'
来自/usr/lib64/ruby/gems/1.8/gems/railties-3.2.11/lib/rails/railtie/configurable.rb:30:in
send'
来自/usr/lib64/ruby/gems/1.8/gems/railties-3.2.11/lib/rails/railtie/configurable.rb:30:in
方法\u缺失'
from/home/forem/config/environment.rb:5
from/usr/lib64/ruby/gems/1.8/gems/activesupport-3.2.11/lib/active\u support/dependencies.rb:251:in
require'
from/usr/lib64/ruby/gems/1.8/gems/activesupport-3.2.11/lib/active\u support/dependencies.rb:251:in
require'
from/usr/lib64/ruby/gems/1.8/gems/activesupport-3.2.11/lib/active\u support/dependencies.rb:236:in
加载依赖项'
from/usr/lib64/ruby/gems/1.8/gems/activesupport-3.2.11/lib/active\u support/dependencies.rb:251:in
require'
from/usr/lib64/ruby/gems/1.8/gems/railties-3.2.11/lib/rails/application.rb:103:in
require\u环境！'
from/usr/lib64/ruby/gems/1.8/gems/railties-3.2.11/lib/rails/commands.rb:25
从脚本/rails:6:in
require'
来自脚本/rails:6

那么我是不是有什么东西遗漏了

我下载的是这个：
https://github.com/radar/forem.heroku.com
您得到的错误是由于您在不支持Ruby的旧版本中使用Ruby 1.9+哈希语法。您需要将Ruby升级到1.9.2或1.9.3，或者将session_store.rb文件的第二行更改为：

# Be sure to restart your server when you modify this file.
Forums::Application.config.session_store :cookie_store, :key => '_forums_session'

文件的内容是什么：
/home/forem/config/initializers/session_store.r
？它包含：
#修改此文件时，请确保重新启动服务器。Forums:：Application.config.session_store:cookie_store，key:“_Forums_session”#将数据库用于会话，而不是基于cookie的默认值#，该默认值不应用于存储高度机密的信息#（使用“rails生成会话迁移”创建会话表）论坛：：Application.config.session_store:active_record_store
ruby-v是什么意思？它说的是
ruby 1.8.7（2011-06-30 patchlevel 352）[x86_64-linux]
谢谢，我会继续尝试的，现在我明白了：>railsgforem:install>/usr/local/lib/ruby/1.9.1/yaml.rb:56:in
：>似乎您的ruby安装缺少psych（用于yaml输出）。>要消除此警告，请安装libyaml并重新安装>ruby。>/usr/local/lib/ruby/gems/1.9.1/gems/activerecord->3.2.11/lib/active\u record/connection\u adapters/postgresql\u adapter.rb:12>08:in
initialize'：无法连接到服务器：没有这样的文件或>目录（PG:：Error）>服务器是否在本地运行并接受Unix域套接字上的>连接“/tmp/.s.PGSQL.5432”？这绝对是一个无关的问题。我建议打开一个新问题，以获得更好的可视性和更多的关注。我认为这个问题可能是因为我对ruby进行了不同的灌输，我将重新安装它。