Import Feed items for FeedAPI Exhaustive Parser into Data Store

Greetings,

I am trying to import a complex feed using FeedAPI Exhaustive Parser (feedapi_parser_exhaustive). Once I create the feed and go to the Map option for that feed. It lists all relevant XML feed elements in the Source box, but does not allow me to select a target. The target box is empty except for "Select a target".

As I am not receiving any errors, I think I have everything set up correctly. I can provide further information if you know what you are looking for.

Thanks in advance.