Undefined method `mass_assignment_sanitizer=' for ActiveRecord::Base:Class (NoMethodError)

Question

I\'m learning Rails with the awesome Ruby on Rails Tutorial by Michael Hartl. I\'m on section 3.2.2 (Test Driven Development) in which I need to run the following c

Answer 1

Did you downgrade from Rails 3.2 RC1? Comment out the following two lines from your development.rb:

config.active_record.mass_assignment_sanitizer = :strict
config.active_record.auto_explain_threshold_in_seconds = 0.5