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Christophoros67
Participant
August 26, 2018
Question

LR Classic 7.5 Sync error "bad argument #1 to '?' (number expected, got nil)

  • August 26, 2018
  • 22 replies
  • 10904 views

I have trouble syncing  LR Classic 7.5 with the ipad app and Lightroom CC. 21 pictures are marked with a sync error (the sync arrow with the three dot below) and trying to re-sync doesn't work. The sync information appearing in blue on the upper left shows "syncing 32 photos" but there is no progress whatsoever, and the synchronization of new photos doesn't happen. I have tried deleting the sync.lrdata file several times, and even reinstalled LR Classics, but nothing seems to work.

I'm on a mac sing High Sierra 10.13.6

Any idea how to solve this problem?

    This topic has been closed for replies.

    22 replies

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    berliner_ffm
    berliner_ffm
    Inspiring
    September 5, 2018

    I ran into the same Problem yesterday.

    Rebuild Sync data did not work for me. But all Pictures affected did still have the embedded preview in Classic. So I let Lightroom render the previews correctly and afterwards sync continued without any error.

    Just wanted to share that with you in case it might work for others as well.

      berliner_ffm
      berliner_ffm
      Inspiring
      September 5, 2018

      Update: Same Issue with the same pictures again today. Its really since you can't sync properly anymore

      coustoulin
      coustoulin
      Inspiring
      September 6, 2018

      Hello,

      I have a similar problem but as I use the french edition of LR, I can't see Lightroom's -> Preferences -> Lightroom Sync -> Press option -> Rebuild Sync data

      I see "Supp les données synchonisée", whitch is very different from "rebuild" ...

      is it this button ? and what does it exactely do ?

      Sahil.Chawla
      Adobe Employee
      Sahil.Chawla
      Adobe Employee
      August 27, 2018

      Hi Christophoros,

      We're sorry to hear about the sync error, let us help make this right.

      Could you please try the steps below and let us know if it helps?

      Please go to Lightroom's -> Preferences -> Lightroom Sync -> Press option -> Rebuild Sync data . Lightroom will restart and syncing will reset and there will be no impact on your images

      Regards,
      Sahil

        C
        Christophoros67Author
        Participant
        August 27, 2018

        Dear Sahil,

        Thanks for your answer.

        I followed the procedure you advised, unfortunately it didn’t solve my problem.

        As before, Lightroom shows « syncing 34 photos » in the upper left, and the number doesn’t go down.

        When I go to preferences>Lightroom Sync, the sync activity panel shows (270 uploading, 0 downloading, 0 pending) and path link shows the same error message as before (bad argument #1 to '?' (number expected, got nil))

        These are pictures I took and synced over one year ago, and there wasn’t any problem before I installed the last lightroom update.

        Best

        Christophe

        Le 27 août 2018 à 17:52, Sahil.Chawla <forums_noreply@adobe.com> a écrit :

        LR Classic 7.5 Sync error "bad argument #1 to '?' (number expected, got nil)

        created by Sahil.Chawla <https://forums.adobe.com/people/Sahil.Chawla> in Lightroom Classic CC — The desktop-focused app - View the full discussion <https://forums.adobe.com/message/10584126#10584126>

        Hi Christophoros,

        We're sorry to hear about the sync error, let us help make this right.

        Could you please try the steps below and let us know if it helps?

        Please go to Lightroom's -> Preferences -> Lightroom Sync -> Press option -> Rebuild Sync data . Lightroom will restart and syncing will reset and there will be no impact on your images

        Regards,

        Sahil

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        Christophoros67Author
        Participant
        August 30, 2018

        Since the answer to my last posting was *crickets* ...

        . I reinstalled the previous version (7.4) and the problem disappeared (after LR took 4 hours re-uploading the metadata to the cloud). It seems to be a bug in the way the metadata is synchronized between LR Classic and LR CC and is an issue with the 7.5 version,

        A fix would be nice...

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