Can't select the "to project/album" button for Aperture

Hi!

I'm try to do an aperture photo import workflow but I have wpm eissues to get it running. I can't select the "to project/album" button If I try to click "Ok" I get an error that one of the actions have an empty field.

Any suggestions to solve this problem?

In Aperture, go into its preferences and check the "Preview" section. Make sure it's set to share XML with other applications (any setting besides "Never" will work here).