Apple Event: May 7th at 7 am PT
I am trying to sync my new iPhone 6S to iTunes via USB. I keep getting this message: "Attempting to copy to the disk Macintosh HD failed. An unknown error occurred (-54)." Can someone please help? I've already repaired Disk Permissions via Disk Utility on my Mac and also Reset all Settings on my iPhone to no avail.
== Error -54 ==
From an OS9 reference, error -54 is a software lock on a file or a permissions error. (Although there is no formal list of OSX error code some of the old codes still apply to OSX .)
First, try simply restarting your computer.
Try quitting iTunes, then deleting the .xml (not .itl !) version of the library file in the iTunes folder (iTunes will generate a new one).
iTunes Library cannot be saved (Error -54) - https://discussions.apple.com/thread/1912814 - various things to try.
Unknown error (-54) while syncing ipod - https://discussions.apple.com/thread/1082953 - problem was locked files
Why does iTunes keep showing a -54 error when I sync my iPad? - https://discussions.apple.com/thread/3727114
Error -54 possibly related to Touch Copy - https://discussions.apple.com/thread/3727114 - cleared by deleting preferences on iPad.
iTunes: Missing folder or incorrect permissions may prevent authorization - http://support.apple.com/kb/ts1277
Troubleshooting permissions issues in Mac OS X - http://support.apple.com/kb/HT2963
I just deleted the xml file in iTunes and it worked!
That fixed the sync and backup issue from my iPad to my mac. Thanks so much!!
Attempting to copy to the disk Macintosh HD failed. An unknown error occurred (-54).
