'NoneType' object has no attribute 'getProvides'
That's a shame and all, but it's a packagekit bug, not a freedesktop bug.
This bug report is very old and based on a version not supported anymore. By upgrading to a newer version of PackageKit you could receive bug fixes and new functionality. You may need to upgrade your Linux distribution to obtain a newer version of PackageKit.
Please feel free to reopen this bug if the problem still occurs with the latest version.