[Android] not all attachments sync (NOT linked, wedav)

edited March 17, 2025
Hi, I have read other discussions about attachment syncing but my problem seems to be slightly different.

I have webdav syncing. It works fine if not for the following problem

On my zotero 7 desktop I attached some files. All my attachments are STORED attachments, not LINKED attachments.

On my zotero android app I can download some attachments, but some others always give an unspecified error when downloading. The download start and almost immediately after the icon changes to a red file with a excalmation mark (example below). Some other files download just fine.

https://s3.amazonaws.com/zotero.org/images/forums/u2738531/edqa2hajwzhbeeuie7fp.jpg

There is no further information associated with the error. I didn't notice any particular pattern. The failing files are consistently the same and seem to be similar in all aspects (dimensions, encoding, ...) to the ones succeding.

I suggest deploying a version of the app with more informative errors, so that it's easier to debug
  • Can you provide a Debug ID for a download attempt?
  • First of all thanks, I didn't know about the debug log feature. It's very useful.

    The debug id is D1536077836,

    I noticed that it's a 404, but this is strange since I can sync it on desktop apps
  • edited March 17, 2025
    Thanks, I was able to resolve my issue. For anyone reading this, my specific problem was the following.

    I had mixed remotes with some attachments stored on zotero.org and some others stored on my webdav server.

    On the original desktop zotero where the attachments where being uploaded for the first time, the Sync History had that file associated to zotero.org remote, so further syncing were not updating the remote to the newer webdav remote.

    On other desktop zotero installments, I logged in to my account to download my references and (with the default settings) this downloaded the attachments from both sources.

    On android zotero, I had my webdav server as my only source so some files could not be found

    To solve the issue I Reset the Sync History on my origina desktop zotero and re-triggered a sync. This successfully uploaded all my files to my webdav server and these were now available on all other zotero installments

    Thanks @dstillman and sorry for wasting your time
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