Rails: Can't run DB Rake on OS X 10.6 because gem SQL lite cannot be found <p>Here's my error message when I do a DB rake:</p> <blockquote> <p>Could not find gem 'sqlite3 (>= 0)' in any of the gem sources listed in your Gemfile.</p> </blockquote> <p>I've tried Installing xCode 4.0.2</p> <p>Commands: </p> <pre><code>sudo gem install sqlite3-ruby sudo gem update --system sudo gem update rails sudo gem update sqlite3-ruby </code></pre> <p>Gem list produces: </p> <pre><code>abstract (1.0.0) actionmailer (3.0.8, 2.2.2) actionpack (3.0.8, 2.2.2) activemodel (3.0.8) activerecord (3.0.8, 2.2.2) activeresource (3.0.8, 2.2.2) activesupport (3.0.8, 3.0.6, 2.2.2) arel (2.0.10) builder (2.1.2) bundler (1.0.14) erubis (2.6.6) i18n (0.5.0) mail (2.2.19) mime-types (1.16) polyglot (0.3.1) rack (1.2.3) rack-mount (0.6.14) rack-test (0.5.7) rails (3.0.8, 2.2.2) railties (3.0.8) rake (0.9.2, 0.8.3) rubygems-update (1.8.5, 1.8.4, 1.3.1) thor (0.14.6) treetop (1.4.9) tzinfo (0.3.27) </code></pre> <p>Any suggestions? I'm on Max OS X 10.6 </p>