Book Project Corrupted

Question

My book project is missing photos.
The book icon indicates that there are 158 photos in the book. I have only used 90. There are only 6 left in my creation bar.
Here's the deal:
I started the album. Then duplicated it.
I edited the duplicate and added and removed photos from the duplicate.
When I was sure that I was not going to need the original, I deleted it.
I then went back to add photos to the duplicate that were previously removed from the book.
This is when the book would not let me copy to it.
Additionally, the number of photos in the book never decreased.
I did notice that the number in the original book did decrease when photos were removed from the duplicate.
I scoured the discussion groups, but I can't find an answer. So if anyone has any iNsight I'd really appreciate it!!

Answer 1

As a test launch iPhoto with the Option key held down and try to create a new, test library.  Can you?  If not then do the following:
1 - delete the iPhoto preference file, com.apple.iPhoto.plist, that resides in your
     User/Home/Library/ Preferences folder.
2 - delete the contents the following folder: User/Library/Containers/com.apple.iPhoto
3 - reboot, launch iPhoto and try again.
NOTE: For Mavericks and Yosemite,  go to your Home folder and use the View ➙ Show View Options menu to bring the this window:
where you can check the Show Library Folder checkbox.