The iPhone "iPhone" cannot be synced. The required file cannot be found.

I have the same error and posted it already but so far no concrete answers. I found this at the first syncing of the musics, not apps or others.

I am on a Mac. I tried your suggestion and did not work. The error still shows up often.

I have had issue like this using a pc.
The bottom line some file has become currupt.
Download a fresh copy and reinstall it.
This will replace the bad files.

It doesnt matter if its a Mac or a PC.
You have a bad file somewhere.
Reinstall iTunes, but download a fresh copy.

Message was edited by: wishiwas

Just tried your suggestion of going to iPhoto Library and deleting the iPod Photo Cache did not work. I am still getting the error.

Called Apple and got it resolved. Apparently, if you have iToner from Ambrosia, it gets confused with different versions and iTunes gives that error. I tried to reinstall iTunes and still didn't work. What I had to do was quit iTunes, go to User > Library > iTunes > iTunes Plug-ins and delete the iTonerSupport.bundle. Then restart the iTunes and the error went away. I hope this is helpful.

iToner is a program that allows you to sync ring tones with iPhones. It came out a while back and they are still upgrading it.

I got this error when I tried to sync photos back to my iPhone.
All I had to do was change the name of the folder that the photos I wanted were in.
After that, I didn't even have to restart iTunes, just tried syncing again and it worked.
Best of luck~!