# Updating Rails

**URL:** <https://www.ruby-forum.com/t/updating-rails/141971>\
**Category:** Rails\
**Created:** [July 2, 2008, 7:40am UTC](https://www.ruby-forum.com/t/updating-rails/141971 "2008-07-02T07:40:36Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![dave](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/ee7513/32.png) [@dave](https://www.ruby-forum.com/u/dave)\
**Post date:** [July 2, 2008, 7:40am UTC](https://www.ruby-forum.com/t/updating-rails/141971/1 "2008-07-02T07:40:36Z")

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I have a project that was created using Rails 2.0.1 and is now on a  
computer which has Rails 2.1.0 installed. Is there an easy way to  
update the project? If I run “rake rails:update” in the root directory  
of my project (which seems like what I want to do), it complains that  
the 2.0.1 gem is not installed.

Thanks in advance for your help.

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**Author:** ![dave](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/ee7513/32.png) [@dave](https://www.ruby-forum.com/u/dave)\
**Post date:** [July 2, 2008, 8:31am UTC](https://www.ruby-forum.com/t/updating-rails/141971/2 "2008-07-02T08:31:32Z")

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Have you tried to install Rails 2.0.1 and then run the command again?

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**Author:** ![dave](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/ee7513/32.png) [@dave](https://www.ruby-forum.com/u/dave)\
**Post date:** [July 2, 2008, 8:50am UTC](https://www.ruby-forum.com/t/updating-rails/141971/3 "2008-07-02T08:50:16Z")

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Did you change environments.rb to rails 2.1 ?

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**Author:** ![dave](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/ee7513/32.png) [@dave](https://www.ruby-forum.com/u/dave)\
**Post date:** [July 2, 2008, 10:17am UTC](https://www.ruby-forum.com/t/updating-rails/141971/4 "2008-07-02T10:17:35Z")

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first: change in environment.rb ,set 2.0.1 to 2.1.0  
second: rake rails:freeze:edge TAG=rel\_2-0-1, old project use old  
rails, that’s my idea  
third: change back 2.1.0 to 2.0.1  
the project use rails in vendor/rails and new and old project both ok.