title: How do I fix this error? config.gem: Unpacked gem authlogic-2.1.3 in vendor/gems has no specification file
body: <p>I get this error when launching my Mongrel server...</p>
  
  <pre><code>$ script/server --debugger
  =&gt; Booting Mongrel
  =&gt; Rails 2.3.5 application starting on http://0.0.0.0:3000
  config.gem: Unpacked gem authlogic-2.1.3 in vendor/gems has no specification file. Run 'rake gems:refresh_specs' to fix this.
  =&gt; Debugger enabled
  =&gt; Call with -d to detach
  =&gt; Ctrl-C to shutdown server
  </code></pre>
  
  <p>When I run rake gems:refresh_specs like it suggests I get another error though:</p>
  
  <pre><code>rake aborted!
  undefined method `installed_source_index' for #&lt;Gem::SourceIndex:0x100551a58&gt;
  </code></pre>
  
  <p>Any thoughts on how to fix this?</p>