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POMigrating to Rails 3.2 - Undefined method 'session=' for ActionController::Base:Class
 

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  1. POMigrating to Rails 3.2 - Undefined method 'session=' for ActionController::Base:Class
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    <p>I migrated an old Ruby (1.8.7) and Rails (2.2.2) application to Ruby (1.9.3) and Rails (3.2.12) following all of these excellent references:</p> <p><a href="http://github.com/rails/rails_upgrade.git" rel="nofollow">Rails Upgrade Script</a><br /> <a href="http://blog.wolfman.com/articles/2010/12/17/upgrading-a-rails-2-dot-2-2-app-to-rails-3" rel="nofollow">Rails 3 Migration Blog</a><br /> <a href="http://gregmoreno.wordpress.com/2010/08/11/rails-3-upgrade-part-1-booting-the-application/" rel="nofollow">Booting the Rails 3 App</a><br /> </p> <p>I am able to start up the app's Rails server but when I access the app via the browser, and then BLAMMO! I get a server error:</p> <p><strong>!! Unexpected error while processing request: undefined method `session=' for ActionController::Base:Class</strong></p> <p>When I grep -r for "session =" I get:</p> <pre><code>/var/www/vendor_sandbox/config/application.rb: config.action_controller.session = { /var/www/vendor_sandbox/config/environment.rb.rails2: config.action_controller.session = { /var/www/vendor_sandbox/destroy/config/environment.rb: config.action_controller.session = { /var/www/vendor_sandbox/generate/config/environment.rb: config.action_controller.session = { </code></pre> <p>According to a Google search for that error, it's an old issue from Rails 2 so I'm wondering If I missed something in the migration process or if this is something else. Thanks</p> <p>Here is my terminal session activity:</p> <pre><code>root@partners:/var/www/vendor_sandbox# ruby -v ruby 1.9.3p385 (2013-02-06 revision 39114) [i686-linux] root@partners:/var/www/vendor_sandbox# rails --version Rails 3.2.12 root@partners:/var/www/vendor_sandbox# rails s =&gt; Booting Thin =&gt; Rails 3.2.12 application starting in development on http://0.0.0.0:3000 =&gt; Call with -d to detach =&gt; Ctrl-C to shutdown server &gt;&gt; Thin web server (v1.5.0 codename Knife) &gt;&gt; Maximum connections set to 1024 &gt;&gt; Listening on 0.0.0.0:3000, CTRL+C to stop </code></pre> <p><strong>Then, I hit the application from a browser and:</strong></p> <pre><code>!! Unexpected error while processing request: undefined method `session=' for ActionController::Base:Class </code></pre>
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    1. COYou used to be able to say session :off to turn off the session (which isn't needed these days), but without seeing the code that's just a guess
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    2. COOK. I will grep around for "session" and see what turns up. Thanks
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    3. CO@Frederick - See my update
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