This error is showing up in my syslog every few seconds:
Aug 28 06:02:04 Roys-MacBook-Pro mdworker: (Error) Import: Couldn't find bundle identifier for /Developer/Applications/Utilities/Application Loader.app/Contents/Library/Spotlight/MZSpotlight.mdimporter
mdworker seems to be connected to Spotlight, and the error mentions Spotlight in it.
I'm running Mac OS X 10.7.4. What's the cause of the error, and how do I fix it?