Recently had to upgrade Mimemagic to version 0.3.9 because version 0.3.2 was pulled from RubyGems.

After rebuilding our WAR file, we are getting the following error message in our Tomcat logs:
Ignoring mimemagic-0.3.9 because its extensions are not built. Try: gem pristine mimemagic --version 0.3.9

The app itself produces the following error when tryin to view it:

Could not find mimemagic-0.3.9 in any of the sources from uri:classloader

Does anyone have any insight or direction for where to go next here?