Update your software
Make sure your Mac is running the latest version of macOS and your iPhone, iPad or iPod touch is running the latest version of iOS or iPadOS. If you're using macOS Mojave or earlier, make sure you have the latest version of iTunes. Then try to sync again.
Consolidate the media files in your music library
The media files in your music library may be stored in several locations. Consolidate your files to make sure the content is stored in one location, then try to sync again.
Consolidating your files can correct permissions and simplify the syncing process.
Check for issues with third-party security software
Some third-party software, including security software, can interfere with the sync process between your computer and your device. Change your security software's setup and then try to sync again.
If you still see the error
In some cases, there may be an issue with specific songs you're trying to sync. To identify the songs:
- See if the error message includes which songs are causing the issue.
- Only sync a few songs at a time and keep adding more until the issue occurs again.
For issues with songs that you've bought from the iTunes Store, you can delete and then re-download apps and re-download music. You can also download apps and download music directly to your iPhone, iPad or iPod touch.
There may be an issue with songs you've copied from a CD or didn't buy from the iTunes Store. In this case, delete the songs and then import them again from the original source.
Get more help
- Find out how to resolve Error -54.
- Find out what to do if you're prompted to authorise your Apple ID.