hi all,
so here's my contribution to this thread:
iphone 5
itunes 11.1
ios 7.0.3
i finally got past the waiting for changes -- it took about 30 minutes. unfortunately, somehow itunes and my phone felt the need to reload all of my music -- all 10,000 songs, which i have in a single playlist (not a smart one).
all told, it took 36 hours.
i kept getting the error message: "itunes library library cannot be saved. error (-54). over and over and over -- every few minutes. however, my music was still syncing. finally, i clicked the "do not warn again" checkbox on the error dialog box, and the error message stopped and the music kept syncing.
finally, this morning, i woke up to find that my phone had completed the reload of my songs. itunes and my phone told me that one song couldn't be copied.
i removed the offending song, and tried to resync, AND it synced perfectly.
then, i added the song back to the playlist and resynced, just to see what would happen. it synced really quickly, but i got the message on my phone that one song didn't sync, so that's obvioulsly a valid and repeatable problem.
otherwise, i seriously don't know what i did, except wait for-effin'-ever for my songs to redownload (for 3 days), and remove the one song that itunes said was a problem. maybe it really was that one song and some patience on my part?
i STILL think there's a major problem with ios 7 since SO many people are having problems, and i feel lucky that i didn't have to resore to factory setting like others have had to, withour success.
anyway, i just thought i'd add my experience to the growing pile, for what it's worth.
apple REALLY needs to acknowlege and address this issue! the fact that they haven't is really disappointing.