Why won't my iPad sync photos ("not enough memory") when it's half empty? When I try to sync my iPad, it aborts on the last step, indicating that it can't be synced, becuase "not enough memory is available":



But I have LOTS of room:



And it all fit before - I actually have about 8GB of photos that all fit with  ~20GB to spare until today.   The above image is after I set it to only sync the last 20 photo projects (I'm using aperture) to see if space was really an issue, and it's clearly not.

However, photos do seem to be a part of the problem:   if i turn off photo sync, it works, but if I reduce the photos being synced (sunk? syunk?) to a de minimis number, it doesn't.

The catalyst for the problem is pretty likely either the new version of itunes or of OSX, as both were upgraded just before the problem manifested.  Any help?  I miss my pictures.
I have had iTunes go off the deep end thinking there were far too many photos.

I have had luck with several tacks so I presume there are a few bugs - one of which you may have run into:


Take the device to another computer (or another iTunes library on a shell account) and let it sync and erase all photos on iOS. Taking it back to the main iTunes library which has the correct photos sometimes works. I presume the error was an accounting one on the iPad when this works.
Change photo sync to a simple folder with a jpeg or two, sync it, and then change back to the settings I prefer. (rarely works)
Rebuild the affected library in Aperture or iPhoto - this seems to force new data into the media browser so iTunes is forced to take a better look at the sizes for your albums and photos as organized.


Sorry I don't have a sure fire answer - but maybe you haven't tried all of these or it sparks an idea of something else you can try.