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Updating to Rails 3.0 on Ubuntu 10.04

by Andy Selvig 3. November 2010 16:58

If you have the default rubygems package (version 1.3.5) installed on Ubuntu 10.04 and you try to update to the latest Rails release (3.0.x), you'll get a message about needing a later version of rubygems:

ERROR: Error installing rails:
bundler requires RubyGems version >= 1.3.6

A simple way to fix this is to install the rubygems-update gem:

% sudo gem install rubygems-upate

Then upate to the latest rubygems with:

% sudo /var/lib/gems/1.8/bin/update_rubygems

Now you should be able to install the latest version of Rails:

% sudo gem install rails

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Tags: rails, ubuntu

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