Selected Export Objects not Currently Available for Export

I finally tracked down why some postings are listed in the "Selected Export objects not currently available for Export" section of the Export report. It lists Postings:

• that do not have an approved version (e.g. never been published or in a WaitingForModeratorApproval state)
  
• based on templates which do not have approved versions. You could have created and saved the template but never checked it in. The template must be checked in at least once for an approved version to exist.