在將Mongoid更新到3.0.6後，無法連接到Heroku中的MongoHQ

Question

我已將配置升級到RoR 1.9.3，並且無法在Heroku中繼續工作。

config/mongoid.yml內容：

production: 
    sessions: 
    default: 
     uri: <%= ENV['MONGOHQ_URL'] %> 
    options: 
     skip_version_check: true 
     safe: true 

錯誤：

2012-09-19T16:50:39+00:00 app[web.1]: Mongoid::Errors::NoSessionsConfig (
2012-09-19T16:50:39+00:00 app[web.1]: Problem: 
2012-09-19T16:50:39+00:00 app[web.1]: No sessions configuration provided. 
2012-09-19T16:50:39+00:00 app[web.1]: Summary: 
2012-09-19T16:50:39+00:00 app[web.1]: Mongoid's configuration requires that you provide details about each session that can be connected to, and requires in the sessions config at least 1 default session to exist. 
2012-09-19T16:50:39+00:00 app[web.1]: Resolution: 
2012-09-19T16:50:39+00:00 app[web.1]: Double check your mongoid.yml to make sure that you have a top-level sessions key with at least 1 default session configuration for it. You can regenerate a new mongoid.yml for assistance via `rails g mongoid:config`. 

任何人都知道我做錯了嗎？

Answer 1

我的縮進是錯誤的，這是固定的版本：

production: 
    sessions: 
    default: 
     uri: <%= ENV['MONGOHQ_URL'] %> 
     options: 
     skip_version_check: true 
     safe: true