Can't Open iBook Author File - index.xml "missing"
I've been working on a new book for about two weeks now. I've opened, closed, saved and changed it many times. I went to open the book today in iBook Author to continue adding content and I got this error message:
"'Book Name' couldn't be opened. The required index.xml file is missing."
I've tried re-installing iBooks, accessing the the file under a different user name, but everytime I'm getting the same error message. Any help would be greatly appreciated as I've already spent about 40 hours with this book and I'd hate to loose all my work.
Thanks,
Jacob
MacBook, Mac OS X (10.7.2)