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iTunes Errors

How to Fix Error "iPhone is synced with another iTunes library"

The iPhone (name) is synced with another iTunes library on (computer). Do you want to erase this iPhone and sync with this iTunes library?

fix itunes error

It's really common that iTunes error comes. More recently, Apple users report new iTunes error comes and it may erase all the content of iPhone data with consequence when they are going to sync music. It looks horrible, especially Erase and Sync option appears. In actual, it doesn't erase your iPhone data at all, but barely remove the iTunes content from that iPhone. However, if you lose your precious data on iPhone actually, turn to iPhone Data Recovery to recover lost data right now. Next, I will show you how to fix iTunes sync problems.

Solution to Fix The iPhone Is Synced with Another iTunes Library on Mac:

1. Open a new Finder windows and locate Go menu in the top and click on Go to Folder.

2. Type ~/Music/iTunes and press Enter and click on Go in the next prompted window.

type music

3. There is a files list presented. You'd better to copy them all to be the backups in case something goes wrong and data loss.

copy itunes

4. Open a folder named iTunes Music Library.xml with TextEdit to check Library Persistent ID. Write it down or copy and paste it; at the same time, make sure you modify nothing. Then close it.

itunes music library

5. On your secondary Mac, repeat steps 1 to 3 again. You just need to back files up first. Then delete all of the .itl files in the Previous iTunes Libraries folder. Skip it if it doesn't exit.

check previous itunes libraries

6. Now open your iTunes Music Library .xml with TextEdit on the secondary Mac. Replace the Library Persistent ID with the one you copied from the first computer in step 4. Then save the file.

replace the library persistent id

7. Open iTunes Library .itl with TextEdit on the secondary one. Delete all contents of the file and then save the file. Now open iTunes to check if the Error still exists.

Note: Click OK to leave it alone if there is an error message reading The file "iTunes Library.itl" does not appear to be a valid iTunes library file. In addition, For Windows users, this method is also applied. Go to C:\Users\USERNAME\MUSIC\iTunes and follow the same steps outlined above to make it.

Alternative Way to Fix The iPhone Is Synced with Another iTunes Library Error:

Even though iTunes is produced by Apple officially, unlike reputational iPhone, iPad and Mac, iTunes is undertook a lots of complaints because of its instability, crashes, errors and less readability. Generally speaking, I won't suggest users to copy files via iTunes in case of unexpected situations. Here Tenorshare iCareFone is highly recommended – it allows users to sync music, notes, contacts, videos, ect between iDevice and Windows/Mac with one click.

Free Download For Win 10/8.1/8/7/XP
Secure Download
Free Download For macOS 10.13 and below
Secure Download

1. Download and install the program on your computer. Connect your device to the computer via USB cable.

2. Run the program and click Files Manager from the interface. Then select menu you want to manage.

files management

3. Here I take Contacts for example. You can import and export files from/to computer. At the same time, you are allowed to edit each item manually.

sync iphone data
Free Download For Win 10/8.1/8/7/XP
Secure Download
Free Download For macOS 10.13 and below
Secure Download

/ Posted by Jenefey Aaron to iPhone Fix Follow @Jenefey Aaron