Unable to assemble book

Question

I have built a book in iPhoto, but cannot place the order for it, because I keep getting the following error message when the system tries to assemble the book:
file://localhost/Users/strandoutdoors/Desktop/Screen%20shot%202012-02-04%20at%20 9.31.46%20PM.png
In case the link doesn't work, here's what the error message says:
Unable to Assemble Book
There is a problem with the photo with the filename "(null)." The full resolution version of this photo either cannot be located or is corrupt. Please replace this photo or delete it from your book.
Here's the problem:
I have moused over every image that is placed in the book, to check its assigned name, and cannot find any with the filename null.
Does anybody know how I could pin down which photo is giving me the trouble?
Thanks in advance for any help with this!

Answer 1

Interestingly, I got a similar error message, this one identified the pic, and when I look at the original, it doesn't show anything wrong wtih the pic.  Here is the message I get:
There is a problem with the photo with the filename “DSCN3396.JPG.” The full resolution version of this photo either cannot be located or is corrupt. Please replace this photo or delete it from your book.
This was JUST after doing a full rebuild (every checkmark, 7 hours it took) and so when I removed the picture and replace it with something else, I get the same error message with another pic (from the same roll, can they all be corrupt?).
Please help.