Broken mongrels after Rails 2.3.11 upgrade

At work we ran into a problem with Mongrel crashing after upgrading to Rails 2.3.11. The errors were:

Tue May 25 20:24:52 +0300 2010: Error calling Dispatcher.dispatch #<NoMethodError: You have a nil object when you didn't expect it! You might have expected an instance of Array. The error occurred while evaluating nil.split>

as well as:

The error occurred while evaluating nil.[]

We found Lighthouse issue #4690 covering the problem. The issue linked to gist: 471663 GitHub with a fix for the problem. The gist contained some comments to resolve some issues, namely an “illformed requirement” error and applying the fix for rails versions other than 2.3.8.

After a bit of tweaking we ended up with an initializer that worked for us.

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This entry was posted on 2011/02/14 at 3:52 pm and is filed under Uncategorized. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.