Pages says to upgrade, I searched forums and saw it's an iWork conflict. The problem is, I've never had iWork.

So, I can't delete the file tree specified. Yes, I've looked under Applications/iWork and Applications/Pages. 
Thoughts?

The App Store plays a role in application version determination, and related update messages. It depends on a fresh Spotlight index of your boot drive to avoid internal confusion.
Look in System Preferences > Spotlight > Privacy panel. If the icon for your boot drive appears in the list, select it, and press the minus button to remove it from this panel, and resume Spotlight indexing of your boot drive. This will take awhile, and things may slow down slightly.
After an hour, see if the Pages v5.1 update request has stopped.

Similar Messages

Maybe you are looking for