Problem
When using the god gem in a Rails 2.3.2 application, when you unpack (freeze) the god gem with :
sudo rake gems:unpack
it creates the god drectory in vendor/gems with root owner, and group permissions.
Solution
Remember to change owner and group for the folder
sudo chown -R user_name vendor/gems/god-0.11.0
sudo chown -R user_name vendor/gems/god-0.11.0
Problem
You have the error showing up after starting either the server (./script/server) or the console (./script/console).
For my particular case it started appearing after installing the Rails 3.0 beta3 version, and in an application developed with Rails 2.3.2.
Solution
Just install the system_timer gem:
sudo gem install system_timer
Problem
When using a nested (or embedded) scaffold in ActiveScaffold with Rails 2.3.2 you have the error:
undefined method `render_component'
Solution
According to the issue here, in Rails 2.3 the render_component has been removed.
Install the render_component from:
script/plugin install git://github.com/lackac/render_component.git -r rails-edge
and restart your server, and it should be working.