Support intro
Sorry to hear you’re facing problems. 
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Getting help
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Before clicking submit: Please check if your query is already addressed via the following resources:
- Official documentation (searchable and regularly updated)
- How to topics and FAQs
- Forum search
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Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can. 
The Basics
- Nextcloud Server version (e.g., 29.x.x):
- 30.0.10
- Operating system and version (e.g., Ubuntu 24.04):
- DEbian 12
- Web server and version (e.g, Apache 2.4.25):
- Apache 2.4
- Reverse proxy and version _(e.g. nginx 1.27.2)
- Apache 2.4
- PHP version (e.g, 8.3):
- 8.2
- Is this the first time you’ve seen this error? (Yes / No):
- yes
- When did this problem seem to first start?
- yesrsterday
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
- bare metal
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
- No
Summary of the issue you are facing:
We could not sync files but could sync directory.
Steps to replicate it (hint: details matter!):
- sync files in client 3.16 update
Log entries
{“reqId”:“DWL020DbxzDIvfEruFPI”,“level”:3,“time”:“2025-04-17T16:55:52+00:00”,“remoteAddr”:“92.184.108.182”,“user”:“GCheramy”,“app”:“webdav”,“method”:“GET”,“url”:“/remote.php/dav/files/GCheramy/pathtofileTemplates%20credits.md”,“message”:“Typed property OCA\FilesDownloadActivity\CurrentUser::$identifier must not be accessed before initialization”,“userAgent”:“Mozilla/5.0 (Linux) mirall/3.16.2-20250319.185826.d004c948b-1.0~noble1 (Nextcloud, linuxmint-6.8.0-57-generic ClientArchitecture: x86_64 OsArchitecture: x86_64)”,“version”:“30.0.10.1”,“exception”:{“Exception”:“Error”,“Message”:“Typed property OCA\FilesDownloadActivity\CurrentUser::$identifier must not be accessed before initialization”,“Code”:0,“Trace”:[{“file”:“/var/www/mynextcloud/www/apps/files_downloadactivity/lib/Activity/Listener.php”,“line”:67,“function”:“getUserIdentifier”,“class”:“OCA\FilesDownloadActivity\CurrentUser”,“type”:“->”},{“file”:“/var/www/mynextcloud/www/apps/files_downloadactivity/lib/AppInfo/Application.php”,“line”:46,“function”:“readFile”,“class”:“OCA\FilesDownloadActivity\Activity\Listener”,“type”:“->”},{“file”:“/var/www/mynextcloud/www/lib/private/legacy/OC_Hook.php”,“line”:82,“function”:“listenReadFile”,“class”:“OCA\FilesDownloadActivity\AppInfo\Application”,“type”:“->”},{“file”:“/var/www/mynextcloud/www/lib/private/Files/View.php”,“line”:1329,“function”:“emit”,“class”:“OC_Hook”,“type”:“::”},{“file”:“/var/www/mynextcloud/www/lib/private/Files/View.php”,“line”:1192,“function”:“runHooks”,“class”:“OC\Files\View”,“type”:“->”},{“file”:“/var/www/mynextcloud/www/lib/private/Files/View.php”,“line”:1035,“function”:“basicOperation”,“class”:“OC\Files\View”,“type”:“->”},{“file”:“/var/www/mynextcloud/www/apps/dav/lib/Connector/Sabre/File.php”,“line”:454,“function”:“fopen”,“class”:“OC\Files\View”,“type”:“->”},{“file”:“/var/www/mynextcloud/www/3rdparty/sabre/dav/lib/DAV/CorePlugin.php”,“line”:85,“function”:“get”,“class”:“OCA\DAV\Connector\Sabre\File”,“type”:“->”},{“file”:“/var/www/mynextcloud/www/3rdparty/sabre/event/lib/WildcardEmitterTrait.php”,“line”:89,“function”:“httpGet”,“class”:“Sabre\DAV\CorePlugin”,“type”:“->”},{“file”:“/var/www/mynextcloud/www/3rdparty/sabre/dav/lib/DAV/Server.php”,“line”:472,“function”:“emit”,“class”:“Sabre\DAV\Server”,“type”:“->”},{“file”:“/var/www/mynextcloud/www/apps/dav/lib/Connector/Sabre/Server.php”,“line”:49,“function”:“invokeMethod”,“class”:“Sabre\DAV\Server”,“type”:“->”},{“file”:“/var/www/mynextcloud/www/apps/dav/lib/Server.php”,“line”:375,“function”:“start”,“class”:“OCA\DAV\Connector\Sabre\Server”,“type”:“->”},{“file”:“/var/www/mynextcloud/www/apps/dav/appinfo/v2/remote.php”,“line”:19,“function”:“exec”,“class”:“OCA\DAV\Server”,“type”:“->”},{“file”:“/var/www/mynextcloud/www/remote.php”,“line”:146,“args”:[“/var/www/mynextcloud/www/apps/dav/appinfo/v2/remote.php”],“function”:“require_once”}],“File”:“/var/www/mynextcloud/www/apps/files_downloadactivity/lib/CurrentUser.php”,“Line”:41,“message”:“Typed property OCA\FilesDownloadActivity\CurrentUser::$identifier must not be accessed before initialization”,“exception”:{},“CustomMessage”:“Typed property OCA\FilesDownloadActivity\CurrentUser::$identifier must not be accessed before initialization”}}
Web server / Reverse Proxy
No error in access or error.log
Configuration
Nextcloud
{
“system”: {
“instanceid”: “REMOVED SENSITIVE VALUE”,
“passwordsalt”: “REMOVED SENSITIVE VALUE”,
“secret”: “REMOVED SENSITIVE VALUE”,
“trusted_domains”: [
“domaine1”,
“domaine2”
],
“datadirectory”: “REMOVED SENSITIVE VALUE”,
“dbtype”: “mysql”,
“version”: “30.0.10.1”,
“overwrite.cli.url”: “https://domaine1”,
“dbname”: “REMOVED SENSITIVE VALUE”,
“dbhost”: “REMOVED SENSITIVE VALUE”,
“dbport”: “”,
“dbtableprefix”: “oc_”,
“dbuser”: “REMOVED SENSITIVE VALUE”,
“dbpassword”: “REMOVED SENSITIVE VALUE”,
“installed”: true,
“maintenance”: false,
“theme”: “”,
“loglevel”: 3,
“app_install_overwrite”: [
“spreed”,
“ocr”
],
“default_phone_region”: “FR”,
“has_rebuilt_cache”: true,
“redis”: “array (host => localhost, port => 6379, timeout => 0, dbindex => 9)”,
“memcache.local”: “\OC\Memcache\Redis”,
“memcache.locking”: “\OC\Memcache\Redis”,
“mysql.utf8mb4”: true,
“trashbin_retention_obligation”: “60,90”,
“auth.bruteforce.protection.enabled”: false,
“mail_smtpmode”: “smtp”,
“mail_sendmailmode”: “smtp”,
“mail_from_address”: “REMOVED SENSITIVE VALUE”,
“mail_domain”: “REMOVED SENSITIVE VALUE”,
“mail_smtphost”: “REMOVED SENSITIVE VALUE”,
“mail_smtpport”: “465”,
“mail_smtpauth”: 1,
“mail_smtpname”: “REMOVED SENSITIVE VALUE”,
“mail_smtppassword”: “REMOVED SENSITIVE VALUE”
}
}
Apps
Enabled:
- activity: 3.0.0
- announcementcenter: 7.1.0
- app_api: 4.0.6
- appointments: 2.4.3
- calendar: 5.2.1
- circles: 30.0.0
- cloud_federation_api: 1.13.0
- comments: 1.20.1
- contacts: 7.0.6
- contactsinteraction: 1.11.0
- dashboard: 7.10.0
- dav: 1.31.1
- deck: 1.14.4
- event_update_notification: 2.6.1
- federatedfilesharing: 1.20.0
- federation: 1.20.0
- files: 2.2.0
- files_automatedtagging: 1.20.0
- files_downloadactivity: 1.18.0
- files_downloadlimit: 3.0.0
- files_external: 1.22.0
- files_fulltextsearch: 31.0.0
- files_pdfviewer: 3.0.0
- files_reminders: 1.3.0
- files_sharing: 1.22.0
- files_trashbin: 1.20.1
- files_versions: 1.23.0
- forms: 5.1.0
- fulltextsearch_elasticsearch: 30.0.1
- guests: 4.2.0
- impersonate: 1.17.1
- logreader: 3.0.0
- lookup_server_connector: 1.18.0
- mail: 5.0.0
- maps: 1.5.0
- nextcloud_announcements: 2.0.0
- notes: 4.12.0
- notifications: 3.0.0
- oauth2: 1.18.1
- ownpad: 0.12.0
- password_policy: 2.0.0
- photos: 3.0.2
- polls: 7.4.2
- privacy: 2.0.0
- provisioning_api: 1.20.0
- recommendations: 3.0.0
- registration: 2.7.0
- related_resources: 1.5.0
- serverinfo: 2.0.0
- settings: 1.13.0
- sharebymail: 1.20.0
- socialsharing_email: 3.3.0
- socialsharing_telegram: 3.3.0
- spreed: 20.1.6
- support: 2.0.0
- survey_client: 2.0.0
- systemtags: 1.20.0
- tasks: 0.16.1
- text: 4.1.0
- theming: 2.6.0
- thesearchpage: 1.2.10
- timemanager: 0.3.18
- twofactor_backupcodes: 1.19.0
- updatenotification: 1.20.0
- user_status: 1.10.0
- viewer: 3.0.0
- webhook_listeners: 1.1.0-dev
- whiteboard: 1.0.5
- workflowengine: 2.12.0
Disabled: - admin_audit: 1.20.0
- bruteforcesettings: 3.0.0 (installed 2.7.0)
- encryption: 2.18.0
- firstrunwizard: 3.0.0 (installed 2.16.0)
- libresign: 10.7.2 (installed 10.7.2)
- suspicious_login: 8.0.0
- twofactor_nextcloud_notification: 4.0.0
- twofactor_totp: 12.0.0-dev
- user_ldap: 1.21.0
- weather_status: 1.10.0 (installed 1.0.0)
Thanks