Rails - Mar 2008 - Error while uploading images using attachment_fu on windows

I am a newbie to Rails and i am trying the attachment_fu plugin. I am
referring to the post from the url http://clarkware.com/cgi/blosxom/2007/02/24

When i try to upload an image i am getting the below error. I am using
RMagick. Instead of max_size, i am using size for the attachment
options in the model.

undefined method `include?'' for 512000:Fixnum

vendor/plugins/attachment_fu/lib/technoweenie/attachment_fu.rb:381:in
`attachment_attributes_valid?''
vendor/plugins/attachment_fu/lib/technoweenie/attachment_fu.rb:379:in
`each''
vendor/plugins/attachment_fu/lib/technoweenie/attachment_fu.rb:379:in
`attachment_attributes_valid?''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
validations.rb:1000:in `send''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
validations.rb:1000:in `run_validations''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
validations.rb:998:in `each''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
validations.rb:998:in `run_validations''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
validations.rb:962:in `valid_without_callbacks?''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
callbacks.rb:273:in `valid?''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
validations.rb:933:in `save_without_transactions''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
transactions.rb:108:in `save''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/abstract/database_statements.rb:66:in
`transaction''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
transactions.rb:80:in `transaction''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
transactions.rb:100:in `transaction''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
transactions.rb:108:in `save''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
transactions.rb:120:in `rollback_active_record_state!''
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
transactions.rb:108:in `save''

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Can someone help in resolving this issue.


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