new

# File activerecord/lib/active_record/associations.rb, line 9
    def initialize(record = nil, association_name = nil)
      @record           = record
      @association_name = association_name
      if record && association_name
        super("Association named '#{association_name}' was not found on #{record.class.name}; perhaps you misspelled it?")
      else
        super("Association was not found.")
      end
    end