Upgrading from Rails 1.2.6

I’m a Rails newbie. Currently my Mac is running Rails 1.2.6.

I would like to know how to upgrade to Rails 2.0.2. How do I ensure
my existing Rails apps are also upgraded?


Your existing apps will not be upgraded after you upgrade your Rails
You should upgrade them by hand.

First, modify your config/environment.rb

Modify following line

RAILS_GEM_VERSION = ‘1.2.6’ unless defined? RAILS_GEM_VERSION

RAILS_GEM_VERSION = ‘2.0.2’ unless defined? RAILS_GEM_VERSION

Then, save it and close it, run your terminal and go to the project
path and run the command:

rake rails:update

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Thanks for that!

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