Cuando inicio mi servidor localmente, recibo el siguiente aviso:

please set config.active_support.deprecation to :log at config/environments/development.rb

Cuando agrego en config / assets / development.rb

config.active_support.deprecation = :log 

Yo obtengo:

undefined local variable or method `config' for main:Object (NameError)

mi entorno: Rails 3.0.1 Ruby 1.8.7 Ubuntu 10.04

Archivo Development.rb

# Settings specified here will take precedence over those in config/environment.rb

# In the development environment your application's code is reloaded on
# every request.  This slows down response time but is perfect for development
# since you don't have to restart the webserver when you make code changes.
config.active_support.deprecation = :log
config.cache_classes = false