# Upgrade a rails 3

**URL:** <https://www.ruby-forum.com/t/upgrade-a-rails-3/194373>\
**Category:** IT\
**Created:** [September 3, 2010, 11:28am UTC](https://www.ruby-forum.com/t/upgrade-a-rails-3/194373 "2010-09-03T11:28:22Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![msan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/3ab097/32.png) [@msan](https://www.ruby-forum.com/u/msan)\
**Post date:** [September 3, 2010, 11:28am UTC](https://www.ruby-forum.com/t/upgrade-a-rails-3/194373/1 "2010-09-03T11:28:22Z")

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Sto cercando di fare l’upgrade di alcune applicazioni.  
Come indicato in  
[Ruby on Rails 3.0 Release Notes — Ruby on Rails Guides](http://edgeguides.rubyonrails.org/3_0_release_notes.html) ho installato  
il plugin rails\_upgrade ruby script/plugin install  
[GitHub - rails/rails\_upgrade: Plugin to run checks on your Rails 2.x/3.x to check for obvious upgrade points on the path to 3.0](http://github.com/rails/rails_upgrade.git).  
Una volta installato il comando rake rails:upgrade:check mi dice  
rake aborted!  
no such file to load – initializer

cosa mi manca.