Since update to 27.1.0 i get log errors "OC\User\NoUserException: Backends provided no user object"

chrissi55 · September 17, 2023, 9:20am

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Nextcloud version (eg, 20.0.5): 27.1.0.7
Operating system and version (eg, Ubuntu 20.04): ubuntu server 22.04.3
Apache or nginx version (eg, Apache 2.4.25): NGinx 1.25.2
PHP version (eg, 7.4): PHP 8.2.10
Database: PostgreSQL v16.0.0

The issue you are facing:

Is this the first time you’ve seen this error? (Y/N): y (since using the NC 27.1.0)

Steps to replicate it:

update NC 27.0.2 to 27.1.0
let cron job work with PHP 8.2
check logfile of nextcloud instance

The output of your Nextcloud log in Admin > Logging:

[core] Fehler: OC\User\NoUserException: Backends provided no user object at <<closure>>

 0. <<closure>>
    OC\Files\Node\Root->getUserFolder()
 1. /var/www/nextcloud/lib/private/Files/Node/LazyFolder.php line 74
    call_user_func_array()
 2. /var/www/nextcloud/lib/private/Files/Node/LazyRoot.php line 40
    OC\Files\Node\LazyFolder->__call()
 3. /var/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php line 73
    OC\Files\Node\LazyRoot->getUserFolder()
 4. /var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php line 72
    OCA\GroupFolders\Versions\VersionsBackend->getVersionsForFile()
 5. /var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php line 59
    OCA\GroupFolders\Versions\GroupVersionsExpireManager->expireFolder()
 6. /var/www/nextcloud/apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php line 43
    OCA\GroupFolders\Versions\GroupVersionsExpireManager->expireAll()
 7. /var/www/nextcloud/lib/public/BackgroundJob/Job.php line 81
    OCA\GroupFolders\BackgroundJob\ExpireGroupVersions->run()
 8. /var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php line 103
    OCP\BackgroundJob\Job->start()
 9. /var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php line 93
    OCP\BackgroundJob\TimedJob->start()
10. /var/www/nextcloud/cron.php line 152
    OCP\BackgroundJob\TimedJob->execute()

at 2023-09-17T10:40:02+02:00

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

see this file

Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary.

see above
errors occur 2 times an hour since update yesterday evening

The server integrity check-core is “green”
beyond these errors mentioned here i also have errors from the memories app

Undefined array key "preview_ffmpeg_path" at /var/www/nextcloud/apps/memories/lib/Util.php#363

although i have set a legitime setting in …/nextcloud/config/config.php for ffmpeg; i think it’s up to the eveloper of the memories app to solve that.

I cleared my firefox cache after upgrade and rebooted the server minimum 2 times after upgrade, because the elasticsearch plugin needs update too to work again with latest NC 27.1.0

Thanks for hints / tips

If it is relevant:
my groupfolders app is installed in version 15.3.0 (coming from 15.2.0 under NC 27.0.2) and was updated in common with upgrade to NC 27.1.0.7

The nextcloud logfile (only last lines) says this

{"reqId":"l9xAXzkkyw8fAOlEmZLj","level":3,"time":"2023-09-17T00:55:44+02:00","remoteAddr":"","user":"--","app":"files","method":"","url":"--","message":"Backends provided no user object for ","userAgent":"--","version":"27.1.0.7","exception":{"Exception":"OC\\User\\NoUserException","Message":"Backends provided no user object","Code":0,"Trace":[{"function":"getUserFolder","class":"OC\\Files\\Node\\Root","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyFolder.php","line":74,"function":"call_user_func_array"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyRoot.php","line":40,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php","line":73,"function":"getUserFolder","class":"OC\\Files\\Node\\LazyRoot","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":72,"function":"getVersionsForFile","class":"OCA\\GroupFolders\\Versions\\VersionsBackend","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":59,"function":"expireFolder","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php","line":43,"function":"expireAll","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":81,"function":"run","class":"OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":103,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":93,"function":"start","class":"OCP\\BackgroundJob\\TimedJob","type":"->"},{"file":"/var/www/nextcloud/cron.php","line":152,"function":"execute","class":"OCP\\BackgroundJob\\TimedJob","type":"->"}],"File":"/var/www/nextcloud/lib/private/Files/Node/Root.php","Line":364,"message":"Backends provided no user object for ","exception":{},"CustomMessage":"Backends provided no user object for "}}
{"reqId":"l9xAXzkkyw8fAOlEmZLj","level":3,"time":"2023-09-17T00:55:44+02:00","remoteAddr":"","user":"--","app":"core","method":"","url":"--","message":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )","userAgent":"--","version":"27.1.0.7","exception":{"Exception":"OC\\User\\NoUserException","Message":"Backends provided no user object","Code":0,"Trace":[{"function":"getUserFolder","class":"OC\\Files\\Node\\Root","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyFolder.php","line":74,"function":"call_user_func_array"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyRoot.php","line":40,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php","line":73,"function":"getUserFolder","class":"OC\\Files\\Node\\LazyRoot","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":72,"function":"getVersionsForFile","class":"OCA\\GroupFolders\\Versions\\VersionsBackend","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":59,"function":"expireFolder","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php","line":43,"function":"expireAll","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":81,"function":"run","class":"OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":103,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":93,"function":"start","class":"OCP\\BackgroundJob\\TimedJob","type":"->"},{"file":"/var/www/nextcloud/cron.php","line":152,"function":"execute","class":"OCP\\BackgroundJob\\TimedJob","type":"->"}],"File":"/var/www/nextcloud/lib/private/Files/Node/Root.php","Line":364,"message":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )","exception":{},"CustomMessage":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )"}}
{"reqId":"99HBrR5aPWnHd9Rkb5Oc","level":3,"time":"2023-09-17T02:00:02+02:00","remoteAddr":"","user":"--","app":"files","method":"","url":"--","message":"Backends provided no user object for ","userAgent":"--","version":"27.1.0.7","exception":{"Exception":"OC\\User\\NoUserException","Message":"Backends provided no user object","Code":0,"Trace":[{"function":"getUserFolder","class":"OC\\Files\\Node\\Root","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyFolder.php","line":74,"function":"call_user_func_array"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyRoot.php","line":40,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php","line":73,"function":"getUserFolder","class":"OC\\Files\\Node\\LazyRoot","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":72,"function":"getVersionsForFile","class":"OCA\\GroupFolders\\Versions\\VersionsBackend","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":59,"function":"expireFolder","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php","line":43,"function":"expireAll","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":81,"function":"run","class":"OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":103,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":93,"function":"start","class":"OCP\\BackgroundJob\\TimedJob","type":"->"},{"file":"/var/www/nextcloud/cron.php","line":152,"function":"execute","class":"OCP\\BackgroundJob\\TimedJob","type":"->"}],"File":"/var/www/nextcloud/lib/private/Files/Node/Root.php","Line":364,"message":"Backends provided no user object for ","exception":{},"CustomMessage":"Backends provided no user object for "}}
{"reqId":"99HBrR5aPWnHd9Rkb5Oc","level":3,"time":"2023-09-17T02:00:02+02:00","remoteAddr":"","user":"--","app":"core","method":"","url":"--","message":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )","userAgent":"--","version":"27.1.0.7","exception":{"Exception":"OC\\User\\NoUserException","Message":"Backends provided no user object","Code":0,"Trace":[{"function":"getUserFolder","class":"OC\\Files\\Node\\Root","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyFolder.php","line":74,"function":"call_user_func_array"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyRoot.php","line":40,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php","line":73,"function":"getUserFolder","class":"OC\\Files\\Node\\LazyRoot","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":72,"function":"getVersionsForFile","class":"OCA\\GroupFolders\\Versions\\VersionsBackend","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":59,"function":"expireFolder","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php","line":43,"function":"expireAll","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":81,"function":"run","class":"OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":103,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":93,"function":"start","class":"OCP\\BackgroundJob\\TimedJob","type":"->"},{"file":"/var/www/nextcloud/cron.php","line":152,"function":"execute","class":"OCP\\BackgroundJob\\TimedJob","type":"->"}],"File":"/var/www/nextcloud/lib/private/Files/Node/Root.php","Line":364,"message":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )","exception":{},"CustomMessage":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )"}}
{"reqId":"d749IbBVndvu0s9KAhAe","level":3,"time":"2023-09-17T03:05:02+02:00","remoteAddr":"","user":"--","app":"files","method":"","url":"--","message":"Backends provided no user object for ","userAgent":"--","version":"27.1.0.7","exception":{"Exception":"OC\\User\\NoUserException","Message":"Backends provided no user object","Code":0,"Trace":[{"function":"getUserFolder","class":"OC\\Files\\Node\\Root","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyFolder.php","line":74,"function":"call_user_func_array"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyRoot.php","line":40,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php","line":73,"function":"getUserFolder","class":"OC\\Files\\Node\\LazyRoot","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":72,"function":"getVersionsForFile","class":"OCA\\GroupFolders\\Versions\\VersionsBackend","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":59,"function":"expireFolder","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php","line":43,"function":"expireAll","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":81,"function":"run","class":"OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":103,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":93,"function":"start","class":"OCP\\BackgroundJob\\TimedJob","type":"->"},{"file":"/var/www/nextcloud/cron.php","line":152,"function":"execute","class":"OCP\\BackgroundJob\\TimedJob","type":"->"}],"File":"/var/www/nextcloud/lib/private/Files/Node/Root.php","Line":364,"message":"Backends provided no user object for ","exception":{},"CustomMessage":"Backends provided no user object for "}}
{"reqId":"d749IbBVndvu0s9KAhAe","level":3,"time":"2023-09-17T03:05:02+02:00","remoteAddr":"","user":"--","app":"core","method":"","url":"--","message":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )","userAgent":"--","version":"27.1.0.7","exception":{"Exception":"OC\\User\\NoUserException","Message":"Backends provided no user object","Code":0,"Trace":[{"function":"getUserFolder","class":"OC\\Files\\Node\\Root","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyFolder.php","line":74,"function":"call_user_func_array"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyRoot.php","line":40,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php","line":73,"function":"getUserFolder","class":"OC\\Files\\Node\\LazyRoot","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":72,"function":"getVersionsForFile","class":"OCA\\GroupFolders\\Versions\\VersionsBackend","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":59,"function":"expireFolder","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php","line":43,"function":"expireAll","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":81,"function":"run","class":"OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":103,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":93,"function":"start","class":"OCP\\BackgroundJob\\TimedJob","type":"->"},{"file":"/var/www/nextcloud/cron.php","line":152,"function":"execute","class":"OCP\\BackgroundJob\\TimedJob","type":"->"}],"File":"/var/www/nextcloud/lib/private/Files/Node/Root.php","Line":364,"message":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )","exception":{},"CustomMessage":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )"}}
{"reqId":"CmMOJvUgX8Gt7d2eWEp5","level":3,"time":"2023-09-17T04:10:47+02:00","remoteAddr":"","user":"--","app":"files","method":"","url":"--","message":"Backends provided no user object for ","userAgent":"--","version":"27.1.0.7","exception":{"Exception":"OC\\User\\NoUserException","Message":"Backends provided no user object","Code":0,"Trace":[{"function":"getUserFolder","class":"OC\\Files\\Node\\Root","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyFolder.php","line":74,"function":"call_user_func_array"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyRoot.php","line":40,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php","line":73,"function":"getUserFolder","class":"OC\\Files\\Node\\LazyRoot","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":72,"function":"getVersionsForFile","class":"OCA\\GroupFolders\\Versions\\VersionsBackend","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":59,"function":"expireFolder","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php","line":43,"function":"expireAll","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":81,"function":"run","class":"OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":103,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":93,"function":"start","class":"OCP\\BackgroundJob\\TimedJob","type":"->"},{"file":"/var/www/nextcloud/cron.php","line":152,"function":"execute","class":"OCP\\BackgroundJob\\TimedJob","type":"->"}],"File":"/var/www/nextcloud/lib/private/Files/Node/Root.php","Line":364,"message":"Backends provided no user object for ","exception":{},"CustomMessage":"Backends provided no user object for "}}
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{"reqId":"yszSvajbPdwXE4QIa7JY","level":3,"time":"2023-09-17T08:30:01+02:00","remoteAddr":"","user":"--","app":"core","method":"","url":"--","message":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )","userAgent":"--","version":"27.1.0.7","exception":{"Exception":"OC\\User\\NoUserException","Message":"Backends provided no user object","Code":0,"Trace":[{"function":"getUserFolder","class":"OC\\Files\\Node\\Root","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyFolder.php","line":74,"function":"call_user_func_array"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyRoot.php","line":40,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php","line":73,"function":"getUserFolder","class":"OC\\Files\\Node\\LazyRoot","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":72,"function":"getVersionsForFile","class":"OCA\\GroupFolders\\Versions\\VersionsBackend","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":59,"function":"expireFolder","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php","line":43,"function":"expireAll","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":81,"function":"run","class":"OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":103,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":93,"function":"start","class":"OCP\\BackgroundJob\\TimedJob","type":"->"},{"file":"/var/www/nextcloud/cron.php","line":152,"function":"execute","class":"OCP\\BackgroundJob\\TimedJob","type":"->"}],"File":"/var/www/nextcloud/lib/private/Files/Node/Root.php","Line":364,"message":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )","exception":{},"CustomMessage":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )"}}
{"reqId":"4XQdEPvUpPNWazfGZ5qy","level":3,"time":"2023-09-17T09:35:44+02:00","remoteAddr":"","user":"--","app":"files","method":"","url":"--","message":"Backends provided no user object for ","userAgent":"--","version":"27.1.0.7","exception":{"Exception":"OC\\User\\NoUserException","Message":"Backends provided no user object","Code":0,"Trace":[{"function":"getUserFolder","class":"OC\\Files\\Node\\Root","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyFolder.php","line":74,"function":"call_user_func_array"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyRoot.php","line":40,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php","line":73,"function":"getUserFolder","class":"OC\\Files\\Node\\LazyRoot","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":72,"function":"getVersionsForFile","class":"OCA\\GroupFolders\\Versions\\VersionsBackend","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":59,"function":"expireFolder","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php","line":43,"function":"expireAll","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":81,"function":"run","class":"OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":103,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":93,"function":"start","class":"OCP\\BackgroundJob\\TimedJob","type":"->"},{"file":"/var/www/nextcloud/cron.php","line":152,"function":"execute","class":"OCP\\BackgroundJob\\TimedJob","type":"->"}],"File":"/var/www/nextcloud/lib/private/Files/Node/Root.php","Line":364,"message":"Backends provided no user object for ","exception":{},"CustomMessage":"Backends provided no user object for "}}
{"reqId":"4XQdEPvUpPNWazfGZ5qy","level":3,"time":"2023-09-17T09:35:44+02:00","remoteAddr":"","user":"--","app":"core","method":"","url":"--","message":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )","userAgent":"--","version":"27.1.0.7","exception":{"Exception":"OC\\User\\NoUserException","Message":"Backends provided no user object","Code":0,"Trace":[{"function":"getUserFolder","class":"OC\\Files\\Node\\Root","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyFolder.php","line":74,"function":"call_user_func_array"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyRoot.php","line":40,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php","line":73,"function":"getUserFolder","class":"OC\\Files\\Node\\LazyRoot","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":72,"function":"getVersionsForFile","class":"OCA\\GroupFolders\\Versions\\VersionsBackend","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":59,"function":"expireFolder","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php","line":43,"function":"expireAll","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":81,"function":"run","class":"OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":103,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":93,"function":"start","class":"OCP\\BackgroundJob\\TimedJob","type":"->"},{"file":"/var/www/nextcloud/cron.php","line":152,"function":"execute","class":"OCP\\BackgroundJob\\TimedJob","type":"->"}],"File":"/var/www/nextcloud/lib/private/Files/Node/Root.php","Line":364,"message":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )","exception":{},"CustomMessage":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )"}}
{"reqId":"QNpLd0lM1eHl22exI6JH","level":3,"time":"2023-09-17T10:40:02+02:00","remoteAddr":"","user":"--","app":"files","method":"","url":"--","message":"Backends provided no user object for ","userAgent":"--","version":"27.1.0.7","exception":{"Exception":"OC\\User\\NoUserException","Message":"Backends provided no user object","Code":0,"Trace":[{"function":"getUserFolder","class":"OC\\Files\\Node\\Root","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyFolder.php","line":74,"function":"call_user_func_array"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyRoot.php","line":40,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php","line":73,"function":"getUserFolder","class":"OC\\Files\\Node\\LazyRoot","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":72,"function":"getVersionsForFile","class":"OCA\\GroupFolders\\Versions\\VersionsBackend","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":59,"function":"expireFolder","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php","line":43,"function":"expireAll","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":81,"function":"run","class":"OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":103,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":93,"function":"start","class":"OCP\\BackgroundJob\\TimedJob","type":"->"},{"file":"/var/www/nextcloud/cron.php","line":152,"function":"execute","class":"OCP\\BackgroundJob\\TimedJob","type":"->"}],"File":"/var/www/nextcloud/lib/private/Files/Node/Root.php","Line":364,"message":"Backends provided no user object for ","exception":{},"CustomMessage":"Backends provided no user object for "}}
{"reqId":"QNpLd0lM1eHl22exI6JH","level":3,"time":"2023-09-17T10:40:02+02:00","remoteAddr":"","user":"--","app":"core","method":"","url":"--","message":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )","userAgent":"--","version":"27.1.0.7","exception":{"Exception":"OC\\User\\NoUserException","Message":"Backends provided no user object","Code":0,"Trace":[{"function":"getUserFolder","class":"OC\\Files\\Node\\Root","type":"->"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyFolder.php","line":74,"function":"call_user_func_array"},{"file":"/var/www/nextcloud/lib/private/Files/Node/LazyRoot.php","line":40,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php","line":73,"function":"getUserFolder","class":"OC\\Files\\Node\\LazyRoot","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":72,"function":"getVersionsForFile","class":"OCA\\GroupFolders\\Versions\\VersionsBackend","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php","line":59,"function":"expireFolder","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php","line":43,"function":"expireAll","class":"OCA\\GroupFolders\\Versions\\GroupVersionsExpireManager","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":81,"function":"run","class":"OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":103,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":93,"function":"start","class":"OCP\\BackgroundJob\\TimedJob","type":"->"},{"file":"/var/www/nextcloud/cron.php","line":152,"function":"execute","class":"OCP\\BackgroundJob\\TimedJob","type":"->"}],"File":"/var/www/nextcloud/lib/private/Files/Node/Root.php","Line":364,"message":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )","exception":{},"CustomMessage":"Error while running background job (class: OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions, arguments: )"}}

SysKeeper · September 17, 2023, 9:22am

Can you check if you’re using the latest version of the groupfolder app?

chrissi55 · September 17, 2023, 9:31am

The command

sudo -u www-data php /var/www/nextcloud/occ app:update --all

delivers no updates. The v15.3.0 seems to be the latest (stable) destinated for NC 27.1.0.7

ernolf · September 17, 2023, 1:43pm

chrissi55:

The nextcloud logfile (only last lines) says this

{
  "reqId": "QNpLd0lM1eHl22exI6JH",
  "level": 3,
  "time": "2023-09-17T10:40:02+02:00",
  "remoteAddr": "",
  "user": "--",
  "app": "files",
  "method": "",
  "url": "--",
  "message": "Backends provided no user object for ",
  "userAgent": "--",
  "version": "27.1.0.7",
  "exception": {
    "Exception": "OC\\User\\NoUserException",
    "Message": "Backends provided no user object",

I have actualy got the same issue on one instance since update, but did not yet find out what is the reason.

I have 7 groupfolders configured and in use.
When I run the occ command

./occ groupfolders:expire -vvv

it lists three groupfolders in the same order as they are stored, in green and then the error where it breaks- That gives me theinformation in which groupfolder the ownership is somehow messed up:

Expiring version in 'Family[Group]'
Expiring version in 'HauntingRecords[Group]'
Expiring version in 'TBS[Group]'

In Root.php line 364:

  [OC\User\NoUserException]
  Backends provided no user object


Exception trace:
  at /var/www/nextcloud/lib/private/Files/Node/Root.php:364
 OC\Files\Node\Root->getUserFolder() at n/a:n/a
 call_user_func_array() at /var/www/nextcloud/lib/private/Files/Node/LazyFolder.php:74
 OC\Files\Node\LazyFolder->__call() at /var/www/nextcloud/lib/private/Files/Node/LazyRoot.php:40
 OC\Files\Node\LazyRoot->getUserFolder() at /var/www/nextcloud/apps/groupfolders/lib/Versions/VersionsBackend.php:73
 OCA\GroupFolders\Versions\VersionsBackend->getVersionsForFile() at /var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php:72
 OCA\GroupFolders\Versions\GroupVersionsExpireManager->expireFolder() at /var/www/nextcloud/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php:59
 OCA\GroupFolders\Versions\GroupVersionsExpireManager->expireAll() at /var/www/nextcloud/apps/groupfolders/lib/Command/ExpireGroup/ExpireGroupVersions.php:66
 OCA\GroupFolders\Command\ExpireGroup\ExpireGroupVersions->execute() at /var/www/nextcloud/apps/groupfolders/lib/Command/ExpireGroup/ExpireGroupVersionsTrash.php:54
 OCA\GroupFolders\Command\ExpireGroup\ExpireGroupVersionsTrash->execute() at /var/www/nextcloud/3rdparty/symfony/console/Command/Command.php:298
 Symfony\Component\Console\Command\Command->run() at /var/www/nextcloud/core/Command/Base.php:177
 OC\Core\Command\Base->run() at /var/www/nextcloud/3rdparty/symfony/console/Application.php:1040
 Symfony\Component\Console\Application->doRunCommand() at /var/www/nextcloud/3rdparty/symfony/console/Application.php:301
 Symfony\Component\Console\Application->doRun() at /var/www/nextcloud/3rdparty/symfony/console/Application.php:171
 Symfony\Component\Console\Application->run() at /var/www/nextcloud/lib/private/Console/Application.php:211
 OC\Console\Application->run() at /var/www/nextcloud/console.php:100
 require_once() at /var/www/nextcloud/occ:11

groupfolders:expire [--output [OUTPUT]]

I suppose, that this commit, marked as “WIP” (I guess Work In Progress) introduced this behaviour:

I have looked back the trace in the code and noticed that some part where It could be fixed, meanwhile already are heavily been changed:

so I suppose it will be fixed in an upcoming bugfix release.

I think that this error can not do much harm, so I will simply wait.

Much luck!

ernolf · September 17, 2023, 2:23pm

Meanwhile there is an issue:

github.com/nextcloud/groupfolders

Logs filled with cron errors "Backends provided no user object"

opened 12:50PM - 17 Sep 23 UTC

vidlb

bug 0. Needs triage

### Steps to reproduce 1. Error appears in the log with cron jobs, or when usin…g `docker run (...) occ groupfolders:expire -v` ### Expected behaviour I don't know, it should expire all versions in folders ? ### Actual behaviour ``` In Root.php line 364: [OC\User\NoUserException] Backends provided no user object ``` ### Server configuration **Operating system:** Debian 12 / Docker 24 **Web server:** Nginx reverse proxy **Nextcloud version:** 27.1 **Group folders version:** 15.3 **Updated from an older Nextcloud/ownCloud or fresh install:** Updated from 27.0 **Where did you install Nextcloud from:** Nextcloud AIO **Are you using external storage, if yes which one:** local/s3/smb/sftp/... No **Are you using encryption:** yes/no No **Are you using an external user-backend, if yes which one:** LDAP/ActiveDirectory/Webdav/Saml/... No ### Logs (docker run) ``` Exception trace: at /var/www/html/lib/private/Files/Node/Root.php:364 OC\Files\Node\Root->getUserFolder() at n/a:n/a call_user_func_array() at /var/www/html/lib/private/Files/Node/LazyFolder.php:74 OC\Files\Node\LazyFolder->__call() at /var/www/html/lib/private/Files/Node/LazyRoot.php:40 OC\Files\Node\LazyRoot->getUserFolder() at /var/www/html/custom_apps/groupfolders/lib/Versions/VersionsBackend.php:73 OCA\GroupFolders\Versions\VersionsBackend->getVersionsForFile() at /var/www/html/custom_apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php:72 OCA\GroupFolders\Versions\GroupVersionsExpireManager->expireFolder() at /var/www/html/custom_apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php:59 OCA\GroupFolders\Versions\GroupVersionsExpireManager->expireAll() at /var/www/html/custom_apps/groupfolders/lib/Command/ExpireGroup/ExpireGroupVersions.php:66 OCA\GroupFolders\Command\ExpireGroup\ExpireGroupVersions->execute() at /var/www/html/custom_apps/groupfolders/lib/Command/ExpireGroup/ExpireGroupVersionsTrash.php:54 OCA\GroupFolders\Command\ExpireGroup\ExpireGroupVersionsTrash->execute() at /var/www/html/3rdparty/symfony/console/Command/Command.php:298 Symfony\Component\Console\Command\Command->run() at /var/www/html/core/Command/Base.php:177 OC\Core\Command\Base->run() at /var/www/html/3rdparty/symfony/console/Application.php:1040 Symfony\Component\Console\Application->doRunCommand() at /var/www/html/3rdparty/symfony/console/Application.php:301 Symfony\Component\Console\Application->doRun() at /var/www/html/3rdparty/symfony/console/Application.php:171 Symfony\Component\Console\Application->run() at /var/www/html/lib/private/Console/Application.php:211 OC\Console\Application->run() at /var/www/html/console.php:100 require_once() at /var/www/html/occ:11 ``` ### Logs (cron errors in nextcloud admin panel) ``` Error core OC\User\NoUserException: Backends provided no user object <<closure>> OC\Files\Node\Root->getUserFolder("") /var/www/html/lib/private/Files/Node/LazyFolder.php - line 74: call_user_func_array([ [ "OC\\Fil ... "], [ ""]) /var/www/html/lib/private/Files/Node/LazyRoot.php - line 40: OC\Files\Node\LazyFolder->__call("getUserFolder", [ ""]) /var/www/html/custom_apps/groupfolders/lib/Versions/VersionsBackend.php - line 73: OC\Files\Node\LazyRoot->getUserFolder("") /var/www/html/custom_apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php - line 72: OCA\GroupFolders\Versions\VersionsBackend->getVersionsForFile([ "OC\\User\\User"], [ "OC\\Files\\FileInfo"]) /var/www/html/custom_apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php - line 59: OCA\GroupFolders\Versions\GroupVersionsExpireManager->expireFolder([ 2,"LaTeleS ... "]) /var/www/html/custom_apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php - line 43: OCA\GroupFolders\Versions\GroupVersionsExpireManager->expireAll() /var/www/html/lib/public/BackgroundJob/Job.php - line 81: OCA\GroupFolders\BackgroundJob\ExpireGroupVersions->run(null) /var/www/html/lib/public/BackgroundJob/TimedJob.php - line 103: OCP\BackgroundJob\Job->start([ "OC\\BackgroundJob\\JobList"]) /var/www/html/lib/public/BackgroundJob/TimedJob.php - line 93: OCP\BackgroundJob\TimedJob->start([ "OC\\BackgroundJob\\JobList"]) /var/www/html/cron.php - line 152: OCP\BackgroundJob\TimedJob->execute([ "OC\\BackgroundJob\\JobList"], [ "OC\\Log"]) ``` It seems the error is due to [this line](https://github.com/nextcloud/groupfolders/blob/c5d35231ec12d8a217a50d7728681011184bb1bd/lib/Versions/GroupVersionsExpireManager.php#L72) where `getVersionsForFile` is called with a dummy user, which doesn't seems implemented (yet ?) since `getVersionsForFile` is clearly requiring a real user, because it will call `$user->getUID()` which will return NULL and then cause the exception with `OC\Files\Node\Root->getUserFolder("")` I couldn't find existing issues, but may be this is something already fixed in master / targeting nextcloud 28 ? Will it disappear when AIO will switch to NC 28 ?

Kessl · September 19, 2023, 9:44pm

apps/memories/lib/Util.php#363
I have this exact error and am (almost) certain it is connected to the richdocuments, richcodumentscode or Nextcloud Office.

stepka · October 2, 2023, 11:24am

Hello,

I have observed the same issue after updating from NC 26.03 to 27.1.1 with similar system environment:

PHP 8.2.10
MySQL: 10.3.38
Ubuntu 20.04 LTS
Group folders 15.3.1

The logging is identical in content to the one given in the post and the error is logged twice an hour with the same timestamp and content.

2 questions I have in this context:

Where should the problem be best placed to be solved (NC system, groupfolder app or wherever)?
What follow-up problems should I expect as long as the indicated problem exists?

Thanks for any relevant advice!

bloo · October 2, 2023, 2:18pm

Here: Logs filled with cron errors "Backends provided no user object" · Issue #2559 · nextcloud/groupfolders · GitHub
None as only versions aren’t correctly expired.

chrissi55 · October 6, 2023, 8:44am

still open issue in NC 27.1.2

fenris · October 27, 2023, 4:02pm

I second @chrissi55 , I’m still getting the error log in NC 27.1.2 , Groupfolders 15.3.1

at 2023-10-27T15:35:02+00:00[core] Error: OC\User\NoUserException: Backends provided no user object at <>

<>
OC\Files\Node\Root->getUserFolder()
/var/www/html/lib/private/Files/Node/LazyFolder.php line 74
call_user_func_array()
/var/www/html/lib/private/Files/Node/LazyRoot.php line 40
OC\Files\Node\LazyFolder->__call()
/var/www/html/apps/groupfolders/lib/Versions/VersionsBackend.php line 73
OC\Files\Node\LazyRoot->getUserFolder()
/var/www/html/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php line 72
OCA\GroupFolders\Versions\VersionsBackend->getVersionsForFile()
/var/www/html/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php line 59
OCA\GroupFolders\Versions\GroupVersionsExpireManager->expireFolder()
/var/www/html/apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php line 43
OCA\GroupFolders\Versions\GroupVersionsExpireManager->expireAll()
/var/www/html/lib/public/BackgroundJob/Job.php line 81
OCA\GroupFolders\BackgroundJob\ExpireGroupVersions->run()
/var/www/html/lib/public/BackgroundJob/TimedJob.php line 103
OCP\BackgroundJob\Job->start()
/var/www/html/lib/public/BackgroundJob/TimedJob.php line 93
OCP\BackgroundJob\TimedJob->start()
/var/www/html/cron.php line 152
OCP\BackgroundJob\TimedJob->execute()

at 2023-10-27T15:35:02+00:00

Githopp192 · October 31, 2023, 10:33am

exact same error on 27.1.2

PHP 8.2
RHEL 8.8
APACHE

Bouli911 · November 2, 2023, 12:40am

Disable music app and see

chrissi55 · November 2, 2023, 7:49am

Don’t have installed and enabled this app, so can’t test this hint.

Aleksej · November 3, 2023, 10:54am

Same in 27.1.3

ris · November 13, 2023, 4:11pm

OC\User\NoUserException: Backends provided no user object

jednadvacet · November 24, 2023, 6:18am

Same in 27.1.4

chrissi55 · November 24, 2023, 9:40am

As the Metal Gods “Metallica” already said

“…sad but true…”

jednadvacet · November 24, 2023, 12:40pm

I manage three instances of NC - physical server, virtual server and raspberry. All with the same configuration of server: ubuntu 20.04 and php8.1, standalone versions 27.1.4. Slightly different NC settings - different apps, external storages.

But only the physical one does the fault.

It seems that also problems with cronjob scan are occurring. I had to add another cronjob with occ file scan --all to show new files in external storage (, that I am using as a main storage).

Any help appreciated…

ernolf · November 24, 2023, 1:38pm

It is related to groupfolders app.

If these messages anoy you and if you are good on commandline and script usage, take this as an inspiration, to be run after an update and to revert it back to default before an integrity check, until it got fixed by the team:

/usr/local/bin/nc-groupfolders-versions-bug:

#!/bin/bash

# depends on xmlstarlet

# adapt this to your individual system:
declare NC_DIR="/var/www/nextcloud"
declare HT_USER="www-data"

del_from_x_to_y(){ sed -i "/$1/,/$2/{//!d}" $3;}

nc_download_default() { local app_id=$1 file=$2 version_tag path=$2
    case "$app_id" in
        server) version_tag="v$(awk -F\' '/String/{gsub(/ /,"");$2=tolower($2);print $2}' "$NC_DIR/version.php")"   ;;
        *)      xml_f="$NC_DIR/apps/$app_id/appinfo/info.xml"
                version_tag="v$(xmlstarlet sel -B -t -v "//info/version" "$xml_f"|sed '2,$d')"
                path="apps/$app_id/$file"
    esac
    sudo -u $HT_USER curl -so $NC_DIR/$path https://raw.githubusercontent.com/nextcloud/$app_id/$version_tag/$file
}

# "Backends provided no user object" related: https://github.com/nextcloud/groupfolders/issues/2559#issuecomment-1807372455
nc_groupfolders_versions_bug(){
    local app_id="groupfolders" file="lib/Versions/GroupVersionsExpireManager.php"
    local path="apps/$app_id/$file"
    case "$1" in
        mute)   del_from_x_to_y "file instanceof FileInfo" "else" "$NC_DIR/$path";;
        reset)  nc_download_default "$app_id" "$file"
    esac
}

(($#)) && nc_groupfolders_versions_bug $1 || echo -e "\n- Usage:\n  $0 [ mute|reset ]\n"

exit 0

make it executable:

sudo chmod +x /usr/local/bin/nc-groupfolders-versions-bug

mute this bug:

sudo nc-groupfolders-versions-bug mute

Set everything back to vanilla (default):

sudo nc-groupfolders-versions-bug reset

As you can see, you need the “xmlstarlet” package and you must adapt the NC_DIR and HT_USER vars to your need.
You should absolutely understand what this script does, before you use it! If you brick your server because of misunderstanding, you are on your own!

These functions are part of my `~/.bash_aliases` file. I use pre- and post-update hooks to automate such steps.

Hope that helps,

Much luck,
ernolf

jpo · November 29, 2023, 8:14am

Same here with a NC 27.1.4

Is there another way, maybe a workaround or sth. to clear the versions-folder? Maybe manually?
Because since the problem appeared, the versions-directory(/data/__groupfolders/versions) is absolutely running full on my server.

Since update to 27.1.0 i get log errors "OC\User\NoUserException: Backends provided no user object"

These functions are part of my ~/.bash_aliases file. I use pre- and post-update hooks to automate such steps.

These functions are part of my `~/.bash_aliases` file. I use pre- and post-update hooks to automate such steps.