Error while importing (missing photos?)

Hey everyone,

I just created a new Aperture library in my home folder: ~/Pictures/Aperture Library.aplibrary

I plugged in my Sony NEX-5 (USB) and tried to import like I normally do. But all the files failed (see screenshot).

(If you can't see that full-size, click here: http://cl.ly/2l0F1I251G2q301j1M1B)

Note that the paths shown all contain a reference to a Missing folder. Weird!

Anyone have a clue what's happening here? Thanks!