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You are here: Home / iPhone / iTunes: “The iPhone cannot be synced. A duplicate file name was specified.”

iTunes: “The iPhone cannot be synced. A duplicate file name was specified.”

By Sudz Kar 63 comments Last updated May 10, 2022

Some users have reported an issue in which iPhones fail to sync with iTunes. In these cases, your sync attempt results in the error message. “The iPhone (name) cannot be synced. A duplicate file name was specified.” This problem may be accompanied by duplication of music and other media files.

Contents

  • iTunesSync Fixes
    • There are two potential fixes for this issue:
  • Remove iToner

iTunesSync Fixes

There are two potential fixes for this issue:

Remove iToner

As noted in our report on iTunes 9.2 syncing problems, appears that the presence of Ambrosia Software’ iToner software may cause problems with syncing. Navigate to ~/Library/iTunes/iTunes Plug-ins and/Library/iTunes/iTunes Plug-ins (the Library folders inside your user folder and at the root level of your startup drive) and look for a file called iTonerSupport.bundle. Remove it, then restart, and check to see if iPad syncing occurs more quickly.

UPDATE: Several users have now reported that upgrading to iToner 2.0.6 resolves this issue.

Turn off note syncing. In iTunes, navigate to the info tab and deselect the option to sync notes, then sync your iOS device. You may need to do this each time you sync.

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sudz - apple
Sudz Kar

Obsessed with tech since the early arrival of A/UX on Apple, Sudz (SK) is responsible for the original editorial direction of AppleToolBox. He is based out of Los Angeles, CA.

Sudz specializes in covering all things macOS, having reviewed dozens of OS X and macOS developments over the years.

In a former life, Sudz worked helping Fortune 100 companies with their technology and business transformation aspirations.

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Show 63 Comments

  1. Dino Nuckolls says

    October 29, 2011 at 5:07 PM

    great post really enjoyed

    Reply
  2. Dennis M says

    October 11, 2011 at 6:52 PM

    Deselecting “sync Books” solved the problem for me.

    Reply
  3. Keith says

    April 21, 2011 at 9:16 PM

    HI, I merely wanted to say thanks with regards to doing this blog. I try to show up here once a week to read your posts. Keep up the great work.

    Reply
  4. brian brian says

    January 3, 2011 at 10:56 AM

    It worked i just deleted iTunes folder on the ipod
    E:iPod_ControliTunes

    Reply
  5. sahil says

    December 12, 2010 at 3:02 AM

    hi
    I am unable to sync my iphone4 with my windows7 laptop.It was running all rite few days back.I downloaded few torrent softwares and other softwares.I don’t know whether this is the case its not workin on my laptop or its somthng else bcoz it is working on other systems.pls help me….I tried uninstalling and reinstalling of itunes as well….

    Reply
  6. Russell says

    November 7, 2010 at 6:28 AM

    My i-pod will not sync…I have updated i-tunes 6 November 2010 and since then nothing will sync and all of my 27gb worth of music files will nto appear on the i-pod!! When trying to reload from library the message ‘the i-pod can not be synced. A duplicate file name was specified’ appears. On settings I am told that 27 GB has been used so the old files are still there, but not accessible to play….HOW DO I RESOLVE THIS ISSUE?

    Reply
  7. Rob Fulton says

    October 8, 2010 at 8:58 AM

    THANK YOU, THIS WAS SO ANNOYING and I am happy once again with my Iphone4

    Reply
  8. catfish says

    August 28, 2010 at 12:48 PM

    @Mike & others:

    I’m fairly certain you cannot revert to previous versions of iTunes if you are syncing with an iPhone. Once updated, I believe you are stuck.

    For more on such issues, try Cydia.com, as these issues are relevant for jailbreakers.

    Good luck.

    Reply
  9. catfish says

    August 28, 2010 at 12:45 PM

    iTunes 9.2.1(4)

    iToner 2.0.6

    Open iTunes.

    Select your iPhone.

    Under “info” tab deselect “sync notes.” You’ll need to scroll down the page a bit to see this checkbox.

    Sync your iPhone– it should sync OK now.

    Now go back to iTunes and recheck “sync notes” if you want notes to be synced.

    Sync your iPhone again.

    No error message should appear if it works for you like it did for me.

    Good luck!

    Reply
  10. Mike says

    August 27, 2010 at 2:21 AM

    Hi,

    Am experiencing the same error as Landon. Downgraded Itunes from 9.2 to 9.1. When plugging in 3Gs, iTunes responds: “iPhone cannot be used because it requires version 9.2 or later

    Can anyone please help?

    thanks!

    Reply
  11. nas says

    August 26, 2010 at 8:15 AM

    i couldn’t find the file itoner.bundle, same problem with jason. but while searching for other solutions i moved the sync status box (to get a better view of my web browser) and it disappeared. seems like by moving the status box it completed the sync. tried it afew times and it worked everytime. i noticed that at the top of iTunes, it states that the sync has completed even though the sync box was still running. moved the box and it disappears. not sure if it will help anyone but worth a try

    Reply
  12. jason says

    August 18, 2010 at 11:35 PM

    iam having this problem but i cant seem to find the file itoner.bundle can anyone please explain where it actually is ?

    Reply
  13. raad says

    July 30, 2010 at 10:27 AM

    my ipod cannot be requgnized because need itunes9.0 or later to connect with apple portable lap top and transportar music

    Reply
  14. Bettina says

    July 26, 2010 at 2:41 PM

    I’m also having this issue with an iPod classic, I read that the problem is related to the newly released iTunes 9.2 – I downloaded the week-old iTunes 9.2.1 to see if that fixed the problem and unfortunately not.

    Might try going back to iTunes 9 if I can’t find any other solution and I’ll let you know if that helps.

    Really frustrating!

    Reply
  15. steve says

    July 25, 2010 at 1:19 PM

    i have an ipod classic there isnt a tab in itunes to uncheck sync notes and there isnt itoner

    Reply
  16. mike powert says

    July 21, 2010 at 5:31 PM

    Also for me it was itoner. I updated to 2.06 from Ambrosia website and it syncs again.

    Reply
  17. Yvettegr says

    July 18, 2010 at 2:48 AM

    And what do you do if you aren’t using iToner and don’t have Notes checked? I still get the message.

    Reply
  18. Chris Bailey says

    July 11, 2010 at 8:43 PM

    Updating to the newest version of iToner seams to have worked. I’ll find out once my sync is complete.

    Reply
  19. R. Hess says

    July 7, 2010 at 7:38 AM

    Uhhhh…I may be missing something, but if I uncheck notes sync, how do I sync my notes?

    Reply
  20. Kevin says

    July 5, 2010 at 8:43 AM

    Upgraded to iToner 2.0.6 and my syncing issues are gone!!

    Thanks for the fix!

    Kevin

    Reply
  21. David says

    July 4, 2010 at 5:53 AM

    I have the same sync error message with my Ipod since updating to 9.2 BUT I don’t have iToner installed (I’ve search all my drives) and obviously don’t have the info tab (as it is an Ipod) to try switching notes on/off.

    I’m really stuck – I don’t want to install iToner (can’t see how that will change anything if I didn’t have it in the first place) trial version or otherwise but need to get this resolved. For the record I’m on a PC running Windows XP (sp3) and my Ipod is running latest SW version – 1.3

    Can anyone help?!
    Regards,
    David

    Reply
  22. Alis says

    July 4, 2010 at 2:13 AM

    Thank you so much! Problem solved 🙂

    Reply
  23. Scott Ettin says

    July 3, 2010 at 4:28 PM

    Brilliant. Removing itoner.bundle did the trick. My iPhone 3G running iOS 4 syncs like a charm and actually runs quite well. I can hold off on a 4G upgrade until the end of the year.

    THANK YOU!

    Reply
  24. Anna says

    July 3, 2010 at 9:04 AM

    Still can’t sync my iphone. Upgraded to new OS. Itunes 9.2. Freezes up with a error message when it gets to adding files: 2009 1020 103827 n4a. Can anyone help?

    Reply
  25. John says

    July 3, 2010 at 8:34 AM

    had the same issue, just updated itoner to 2.0.6 and it’s working fine. thx

    Reply
  26. Glick says

    July 2, 2010 at 4:22 AM

    hey what is the full location of the library folder in windows? i just cant seem to find it.

    Reply
  27. Lizette says

    June 27, 2010 at 4:55 PM

    That fixed my issue! It was the iToner.bundle Thanks so much!

    Reply
  28. srking says

    June 27, 2010 at 3:51 PM

    FYI: if you go to iToner’s website there is a software update that fixes this problem.

    Reply
  29. slimey says

    June 27, 2010 at 1:54 PM

    MIKE – connect the iphone to your computer. In the left menu of iTunes, where your phone appears, CLICK to hilight the phone. The tabs appear in the main portion of the window.

    summary… INFO … apps … ringtones…

    _______

    VICKY – if you are running a Windows OS, you would go to

    C:Documents and SettingsUSERNAMEMy DocumentsMyMusiciTunesiTunesMedia

    (provided it is installed to the default location?)

    Reply
  30. Raj says

    June 27, 2010 at 5:19 AM

    I cannot update my iTunes to version 9.2 as error occurs everytime I try to update it.

    Reply
  31. iacct4u says

    June 26, 2010 at 6:02 PM

    updated my iPhone 3g to iOS4, updated iTunes to 9.2, and I don’t have iToner in my MacBook Pro. with this scenario, my iPhone still doesn’t show up in iTunes. any brilliant ideas on how to fix this? thank you!

    Reply
  32. Mike says

    June 24, 2010 at 7:54 AM

    Guys,
    Where is the Info tag, so that I can de-select the syncing of Notes please

    Reply
  33. vicky says

    June 24, 2010 at 4:42 AM

    i don’t mean to be dumb, but i can’t find the library folder :S

    Reply
  34. Nelson says

    June 23, 2010 at 9:43 PM

    I was getting the message, but my phone was still syncing. I updated iToner, message went away and re-synced iToner. Still using iToner and nasty message went away. I’m still on iOS 3 BTW.

    Reply
  35. John Forse says

    June 23, 2010 at 7:05 PM

    I don’t have iToner, but have realised that in updating to iTunes 9.2 and iOS 4, all the sync settings in the info tab were reset to unchecked. Re-check the ones you want and add or re-sync. You still get the error box (must be a 9.2 bug, I’ve no duplicated file names), but everything syncs properly.

    Reply
  36. Landon says

    June 23, 2010 at 7:03 PM

    I’m having a major problem with the recent Itunes 9.2 download. Today I went to download the 4.0 update for my Iphone and before I could download the 4.0 update Itunes required me to download the Itunes 9.2. While I was downloading the 9.2 update my Mac froze and crashed. No my Iphone has completely crashed. When I plug my iphone into my Mac a browser pops up that says “The Iphone cannot be used because it requires Itunes version 9.2 or later”. I have downloaded the 9.2 five times now and everytime i plug my iphone into my computer the same message pops up. If someone could help me with this problem I would really appreciate it.

    Reply
  37. Steph says

    June 23, 2010 at 6:55 PM

    I have upgraded to the latest itunes and os 4 for my iphone. I cannot sync ringtones. I dont get an error message, my ringtones appear in itunes….

    How can i get this fixed with out having to go back to os 3 for iphone.

    Thanks

    Reply
  38. Tom says

    June 23, 2010 at 3:11 PM

    I got rid of the iToner bundle and still had the message. Unchecked the Sync Notes box and it worked .

    Many garcias!

    Reply
  39. Leslee says

    June 23, 2010 at 2:16 PM

    I don’t appear to have iToner on my machine (searched for it and can’t find it) and I don’t have notes syncing but I keep getting the sync error message when my iPhone is syncing regardless.

    What else can I do?

    Reply
  40. Alicia says

    June 23, 2010 at 9:48 AM

    I am having this issue with my iPod since upgrading this afternoon – it won’t sync, and before the upgrade to iTunes 9.2 I was getting an ‘unknown error (-48)’ message.

    I am also on Vista not a Mac. Any ideas?

    Reply
  41. John says

    June 23, 2010 at 9:09 AM

    Thanks! The “uncheck notes sync” fix worked for me, also.

    Reply
  42. Topaz says

    June 23, 2010 at 1:08 AM

    Ok, searched another board. If you don’t have iToner and your “sync notes” was not and never was on… here’s what you do.

    Check Sync Notes and let it sync.

    Uncheck Sync Notes and let it sync.

    No error message. At least that’s what worked for me.

    Reply
  43. Topaz says

    June 23, 2010 at 12:56 AM

    Don’t have iToner, never have. Sync notes is not checked and never has been.

    I updated to the new iOS4 yesterday and now I get the message… weird thing is I think it’s syncing anyway.

    Any ideas on how to get rid of the error message when iToner and sync notes are NOT the problem?

    Reply
  44. Adam says

    June 22, 2010 at 8:39 PM

    I just got iTunes 9.2 this afternoon, and I previously installed iToner. Surely enough this error came up endlessly when I tried to sync my iPhone. I called Apple and they had me remove the iToner Bundle, and along with it went my Ringtones. The note trick worked like a charm, thanks for posting.

    Reply
  45. apple says

    June 22, 2010 at 5:32 PM

    what if you have the same problem but with a windows7 machine?

    Reply
  46. Julia says

    June 22, 2010 at 5:26 AM

    this has been bothering me for about a week now. If you launch iToner, you may have to prompt it to do an update (free, takes a few minutes). Then sync it to your phone again, and then re-sync my phone to itunes. worked great. I never would have guessed this was the problem. phew! Thanks for the help!

    Reply
  47. Daniel says

    June 22, 2010 at 2:56 AM

    Ok, what if you don’t have or even come anywhere near iToner and still have this problem?

    Reply
  48. kidd says

    June 21, 2010 at 7:14 PM

    Thanks!The error is worry myself two week!

    Reply
  49. LeeM says

    June 21, 2010 at 4:19 PM

    I just opened iToner and it updated to the new version 2.0.5. I restarted it and iTunes and all is well now, sync & backup complete now I can finally install iOS4.

    Reply
  50. jumpthesnark says

    June 21, 2010 at 12:44 PM

    Thanks! The “uncheck notes sync” fix worked for me.

    Reply
  51. Eric says

    June 21, 2010 at 11:00 AM

    Confirmed that updating iToner resolves the issue.

    Reply
  52. Rick says

    June 21, 2010 at 6:51 AM

    Glad I found your tip regarding the Library; I dumped the App last week but still had the problem. Just Trashed iToner from the Library.
    I did have to restart my MacBook to empty the bundle from the trash. Now I’m ready for iOS 4.0
    release today. 2 Thumbs Up!!

    Reply
  53. Joan says

    June 21, 2010 at 5:40 AM

    I also was experiencing this problem. I haved removed the iTonersupport.bundle and ALSO quit and restarted iTunes before attempting a new sync and it worked. Thanks!

    Reply
  54. Tom Jackson says

    June 21, 2010 at 4:17 AM

    All you need to do is install the iToner update – 2.05 – it will relaunch iTunes and everything should be fine.

    Reply
  55. Andy Anderson says

    June 21, 2010 at 3:36 AM

    It’s not really necessary to get rid of the iToner app… just get the latest update (you’ll be prompted to download it when you start iToner). When the update installs it will prompt you to do a restart of iTunes (which it will do for you), and the sync problem is solved. I had three friends (including myself) with the same problem, and this solved it.

    If you already have the update, just running iToner one time should solve the problem.

    Reply
  56. Ken J. says

    June 21, 2010 at 2:41 AM

    Worked like a charm once I removed iToner.

    Thanks for the help.

    Reply
  57. Greg Brooking says

    June 20, 2010 at 7:34 AM

    I have this problem using a PC; any ideas or further details about how to remove those items?

    Reply
  58. Patrick says

    June 20, 2010 at 5:59 AM

    I had this same problem with the same error message. I downloaded and installed the iToner 2.05 update (free), did an iToner sync, and synced my iPhone 32gb 3gs in iTunes 9.2.
    Back to normal. Thanks.

    Reply
  59. Pieter says

    June 19, 2010 at 10:20 PM

    Wow is right! Removed itoner an the sync was about 4x faster than normal! And no “cannot be synced.. duplicate file name…” error either. Thanks for the instructions. BTW I just had to restart iTunes to make this work not the whole computer, that was ambiguous in your instructions.

    Reply
  60. Bradley Dichter says

    June 18, 2010 at 2:02 PM

    After upgrading my iPhone 3G to iOS 4 golden master, I’ve had this problem. I thought it was iTunes 9.2 beta but version 9.2 final didn’t fix it. I wouldn’t have guessed iToner. Thanks.

    Reply
  61. Gary says

    June 18, 2010 at 11:15 AM

    It was the iToner.bundle

    Thank You Thank You Thank You Thank You Thank You Thank You Thank You Thank You Thank You Thank You Thank You

    Reply
  62. Marc Opas says

    June 18, 2010 at 11:02 AM

    It may fix the problem to just use iToner once. Not sure if it’s a permanent fix, but I tried this with v. 2.0.5 and the message didn’t come up this time.

    Reply
  63. Dan Seely says

    June 18, 2010 at 8:18 AM

    Excellent! I have been plagued with both slow syncs with my iPad and, after updating to iTunes 9.2, with the iPhone syncing issue described above. Removing the iToner bundle has solved both problems. Thanks!

    Reply

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