# Engines and rails 2.1.0

**URL:** <https://www.ruby-forum.com/t/engines-and-rails-2-1-0/142230>\
**Category:** Rails\
**Created:** [July 4, 2008, 9:09pm UTC](https://www.ruby-forum.com/t/engines-and-rails-2-1-0/142230 "2008-07-04T21:09:44Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![acras](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/f4b2a3/32.png) [@acras](https://www.ruby-forum.com/u/acras)\
**Post date:** [July 4, 2008, 9:09pm UTC](https://www.ruby-forum.com/t/engines-and-rails-2-1-0/142230/1 "2008-07-04T21:09:44Z")

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Does anyone had issues on running an app using engines under rails  
2.1.0?  
I had this:

:in `alias_method': undefined method `initialize\_schema\_information’ for  
module `ActiveRecord::ConnectionAdapters::SchemaStatements' (NameError) from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/core_ext/module/aliasing.rb:31:in `alias\_method\_chain’  
from  
P:/sia/vendor/plugins/engines/lib/engines/rails\_extensions/migrations.rb:131:in  
`included' from P:/sia/vendor/plugins/engines/lib/engines/rails_extensions/migrations.rb:131:in `class\_eval’  
from  
P:/sia/vendor/plugins/engines/lib/engines/rails\_extensions/migrations.rb:131:in  
`included' from P:/sia/vendor/plugins/engines/lib/engines/rails_extensions/migrations.rb:155:in `include’

With engines: = 2.0.0 -

Thanks

Ricardo A.  
removed\_email\_address@domain.invalid  
Acras Sistemas  
+55+41-3232-6404  
[www.acras.net](http://www.acras.net)