NoMethodError: undefined method 'mattr_accessor' for ActiveSupport::Deprecation:Module

[safetycopy]

Hi All

I just tried to install FeedZirra 0.0.18 and after requiring it in irb
I get an error message:

NoMethodError: undefined method 'mattr_accessor' for
ActiveSupport::Deprecation:Module

activesupport-2.3.8 was installed as I installed FeedZirra.

Any suggestions would be appreciated :-)

[Moiseev Sergey]

Solution simple as is:
1. gem install bundler
2. create file Gemfile:
source "http://gemcutter.org"
gem "activesupport", "2.3.4"
gem "feedzirra"
3. bundle install
4. add following lines to your script (right after require
"rubygems"):
require "bundler"
Bundler.setup
require "feedzirra"

[Tyler Gillies]

thank you