Upload from external app doesn't work

⚠️ Before posting ⚠️

This is a bug, not a question or an enhancement.
I've searched for similar issues and didn't find a duplicate.
I've written a clear and descriptive title for this issue, not just "Bug" or "Crash".
I agree to follow Nextcloud's Code of Conduct.

Steps to reproduce

Install this app
https://f-droid.org/pl/packages/com.github.tmo1.sms_ie/
Probably other apps can be used too.
Open and try to export messages or contacts
Choose nextcloud app (from left bar)
Choose any dir in nextcloud app
Press button Save
You will see message "File couldn't be saved" (I am using polish version, so original english message can be different).
File was created on the server, but file is empty (0b)

Expected behaviour

File should be uploaded without errors

Actual behaviour

File is not saved on the server

Android version

16

Device brand and model

Samsung S24 Ultra

Stock or custom OS?

Stock

Nextcloud android app version

34.0.1

Nextcloud server version

33.0.6

Using a reverse proxy?

I don't know

Android logs

No response

Server error logs

Additional information

I have this problem since one or two months.
I updated nextcloud server and reinstalled Nextcloud android app and problem still exists.

@pawlosck

Thats exactly the regression I experience.
Downgraded to 34.0.0 and it fixed it.
@pawlosck

Yep, broken for me too. All apps that access Nextcloud storage can no longer upload since upgrading to 34.0.1 earlier this week. The apps will detect they don't have access, error out, and a 0KB file is created on the server side for whatever the app was trying to do.

Probably the same as #17261 which has a few more specifics on the cause.

Hello

Once the QA APK generated could you please test and share your feedback?

#17270

I have the same issue when opencam tries to store files on my nextcloud. Pease release a hot fix without the SAF to Nextcloud the App is nearly useless.

Hello

Once the QA APK generated could you please test and share your feedback?

#17270

I tried the QA APK and I was able to export files in the FitoTrack app directly to NC via the Files app. That wouldn't work in 34.0.1. I also use the app SMS Backup & Restore and it still fails to access NC storage. I'm on LineageOS (22) and I've always selected a location using the Files app, which lets me select NC as a storage location and then I select my desired upload folder from there. I'm still getting 0KB files, and the app errors saying it can't access the storage.

@kstorbakken

@kstorbakken So "SMS Backup & Restore" this still failed with QA APK? If yes could you share the logs if possible?

Yeah exactly. I started a log capture and went through a backup. The log is here - https://gist.github.com/kstorbakken/2e4d428c2c6e46b85f2d26c65070df54

We fixed this problem

"07-06 00:27:32.915 11538 23130 E DocumentsStorageProvider: RemoteOperationResult{mSuccess=false, mHttpCode=-1, mHttpPhrase='null', mException=null, mCode=LOCAL_STORAGE_NOT_MOVED, message='null', getLogMessage='Error while moving file to final directory'}"

via #17157 but still appears in your logs. Probably because of the DocumentStorageProvider implementation.

Is it possible to share screen-recording? Thus maybe I can try to reproduce it.

Is this actually fixed? I still saw lots of people complaining that it did not work even after trying the QA build for #17270.

Can anyone who reported here that they were seeing this issue confirm that it is now working?

Its not fixed for me.

@tobiasKaminsky

Running v35.0.1 and trying to use Nextcloud with HealthConnect backups. Nextcloud can be selected from the provider list. Selecting any folder results in Health Connect.zip files with zero bytes. Feels a lot like this bug.

Supposed fix #17270 does not have a milestone tag but assume it would be part of 35.0.1?

@tobiasKaminsky can you re-open or do you want a new issue for the remaining problem?

29. Running v35.0.1 and trying to use Nextcloud with HealthConnect backups. Nextcloud can be selected from the provider list. Selecting any folder results in Health Connect.zip files with zero bytes. Feels a lot like this bug.
Supposed fix #17270 does not have a milestone tag but assume it would be part of 35.0.1?
@tobiasKaminsky can you re-open or do you want a new issue for the remaining problem?

Hey,

Could you please check via this QA APK: #17890 ? It will be generated soon.

Downloaded test apk from https://github.com/nextcloud/android/actions/runs/40533814650
logged into nextcloud
in Health Connect > Manage Data > Backup and restore select Nextcloud QA and a sub-folder on that nextcloud

Sadly Android again complains that There was a problem with the export for October 27, 2026. Please set up a new scheduled export and try again.

This matches the previous problematic behavior.

Nextcloud QA Android app Version 17890

29. Downloaded test apk from https://github.com/nextcloud/android/actions/runs/40533814650
30. logged into nextcloud
31. in Health Connect > Manage Data > Backup and restore select Nextcloud QA and a sub-folder on that nextcloud

Sadly Android again complains that There was a problem with the export for October 27, 2026. Please set up a new scheduled export and try again.

This matches the previous problematic behavior.

Nextcloud QA Android app Version 17890

Hey thanks for the feedback. Can u re-test via latest QA APK and share the logs from settings -> logs? You can filter logs via DocumentsStorageProvider

@alperozturk96

@alperozturk96 did another test round with the new build from https://github.com/nextcloud/android/actions/runs/40662655093

Still failing with same error. Requested log (1 week): https://privatebin.lol/?5dd51c45c4ed3b91#EKAAo218oc7f5hMzUkKKocjPeS5ZufYWvUfSVGum7wzb

Relevant part:

2026-10-28T14:57:54.190+0100;E;DocumentsStorageProvider;File was closed with an error: Health Connect (8).zip
2026-10-28T14:57:54.193+0100;D;DocumentsStorageProvider;openDocument(), id=7bf0c0c5e27ad263503711f8f4e1bc03/32532, mode=wt, callerUid=1000
2026-10-28T14:57:54.200+0100;D;DocumentsStorageProvider;openDocument(), remotePath=/Backups/Health Connect (8).zip, storagePath=/storage/emulated/0/Android/media/com.nextcloud.android.qa/nextcloud/user@cloud.domain.org/Backups/Health Connect (8).zip, existsOnDevice=true, truncate=true, needsDownload=false
2026-10-28T14:57:54.202+0100;E;DocumentsStorageProvider;File was closed with an error: Health Connect (8).zip

@foss-

@foss- thank you so much for the swift reply and help. I tried with same app now it should work. Could you please check again #17890 (comment) ?

Fantastic - Health Connect backup worked as expected in latest test build. So happy this finally works 🎉

Thanks so much for your fast responses, re-opening and properly fixing the issue. I think that should be it.

edit: Follow-up: #17908

Fantastic - Health Connect backup worked as expected in latest test build. So happy this finally works 🎉

Thanks so much for your fast responses, re-opening and properly fixing the issue. I think that should be it.

Sidequest: While I have your attention, I have another external app access issue I noticed but that is not about write error but discoverability of Nextcloud. Can you help me understand against which project I would want to file the report? Repro steps:

open Firefox > ... > Extensions > uBlock Origin > Settings > Restore from file... (at the bottom)

in the file picker open hamburger menu at top left

many apps like Galleries, Google Drive, File managers and more do show but Nextcloud is absent

Unsure if this is expected or not, but the fact that Google Drive shows up indicates that Nextcloud should be on that list as well. Is this something that needs to be addressed in Nextcloud, Firefox or in the end Android? 🫪

Please create new issue for that thank you :)

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Upload from external app doesn't work #17258

⚠️ Before posting ⚠️

Steps to reproduce

Expected behaviour

Actual behaviour

Android version

Device brand and model

Stock or custom OS?

Nextcloud android app version

Nextcloud server version

Using a reverse proxy?

Android logs

Server error logs

Additional information

12 remaining items

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Upload from external app doesn't work #17258

Description

⚠️ Before posting ⚠️

Steps to reproduce

Expected behaviour

Actual behaviour

Android version

Device brand and model

Stock or custom OS?

Nextcloud android app version

Nextcloud server version

Using a reverse proxy?

Android logs

Server error logs

Additional information

Activity

kostiya commented on Jun 28, 2026

kstorbakken commented on Jun 30, 2026

WPettersson commented on Jul 1, 2026

alperozturk96 commented on Jul 2, 2026

Tux12Fun commented on Jul 3, 2026

kstorbakken commented on Jul 4, 2026

alperozturk96 commented on Jul 6, 2026

kstorbakken commented on Jul 6, 2026

alperozturk96 commented on Jul 6, 2026

12 remaining items

brianjmurrell commented on Oct 6, 2026

pawlosck commented on Oct 6, 2026

foss- commented on Oct 24, 2026

alperozturk96 commented on Oct 27, 2026

foss- commented on Oct 27, 2026

alperozturk96 commented on Oct 28, 2026

foss- commented on Oct 28, 2026

alperozturk96 commented on Oct 29, 2026

foss- commented on Oct 29, 2026

alperozturk96 commented on Oct 29, 2026

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