[Bug]: conflict with value type from database AppConfigTypeConflictException conflict with value type from database

[AndyXheli]

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

Seeing a lot of these errors since i upgraded to NC34

Steps to reproduce

1. Upgraded to NC 34 RC2 from 33

Expected behavior

Should not see this error

Nextcloud Server version

34

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.5

Web server

Apache (supported)

Database engine version

MariaDB

Is this bug present after an update or on a fresh install?

Upgraded to a MAJOR version (ex. 31 to 32)

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

root@nextcloud:/var/www/nextcloud# sudo -u www-data php occ config:list system
{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "serverid": 1,
        "trusted_domains": [
            "***REMOVED SENSITIVE VALUE***",
            "***REMOVED SENSITIVE VALUE***"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "mysql",
        "version": "34.0.0.8",
        "overwrite.cli.url": "***REMOVED SENSITIVE VALUE***",
        "htaccess.RewriteBase": "\/",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "skeletondirectory": "",
        "maintenance": false,
        "maintenance_window_start": 1,
        "default_phone_region": "US",
        "default_locale": "en_US",
        "memcache.local": "\\OC\\Memcache\\APCu",
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 0,
            "dbindex": 0,
            "password": "***REMOVED SENSITIVE VALUE***",
            "timeout": 1.5
        },
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "allow_local_remote_servers": true,
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpmode": "smtp",
        "mail_sendmailmode": "smtp",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "587",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "enable_previews": true,
        "enabledPreviewProviders": [
            "OC\\Preview\\Image",
            "OC\\Preview\\HEIC",
            "OC\\Preview\\Movie",
            "OC\\Preview\\TIFF",
            "OC\\Preview\\OpenDocument",
            "OC\\Preview\\MSOfficeDoc",
            "OC\\Preview\\SVG",
            "OC\\Preview\\TXT",
            "OC\\Preview\\PNG",
            "OC\\Preview\\JPEG"
        ],
        "preview_max_x": 2048,
        "preview_max_y": 2048,
        "preview_max_filesize_image": 50,
        "preview_max_memory": 1024,
        "defaultapp": "dashboard,files,photos,spreed",
        "updater.release.channel": "beta",
        "theme": "",
        "loglevel": 2,
        "log.condition": {
            "apps": [
                "admin_audit"
            ]
        },
        "mail_smtpauth": true,
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "twofactor_enforced": "false",
        "twofactor_enforced_groups": [],
        "twofactor_enforced_excluded_groups": [],
        "config_preset": 2,
        "versions_retention_obligation": "7,8",
        "app_install_overwrite": [
            "theming_customcss"
        ],
        "memories.db.triggers.fcu": true,
        "memories.exiftool": "\/var\/www\/nextcloud\/apps\/memories\/bin-ext\/exiftool-amd64-glibc",
        "memories.vod.path": "\/var\/www\/nextcloud\/apps\/memories\/bin-ext\/go-vod-amd64",
        "memories.vod.ffmpeg": "\/usr\/bin\/ffmpeg",
        "memories.vod.ffprobe": "\/usr\/bin\/ffprobe",
        "memories.gis_type": 1,
        "mail_smtpstreamoptions": {
            "ssl": {
                "allow_self_signed": false,
                "verify_peer": true,
                "verify_peer_name": true
            }
        },
        "updater.secret": "***REMOVED SENSITIVE VALUE***"
    }
}

List of activated Apps

Enabled:
  - activity: 7.0.0
  - admin_audit: 1.24.0
  - approve_links: 1.4.0
  - appstore: 1.0.0
  - bruteforcesettings: 7.0.0
  - cloud_federation_api: 1.18.0
  - comments: 1.24.0
  - contacts: 8.5.0
  - contactsinteraction: 1.15.0
  - dashboard: 7.14.0
  - dav: 1.39.0
  - federatedfilesharing: 1.24.0
  - federation: 1.24.0
  - files: 2.6.0
  - files_accesscontrol: 5.0.0
  - files_automatedtagging: 5.0.0
  - files_confidential: 4.1.0
  - files_downloadlimit: 5.2.0-dev.0
  - files_external: 1.26.0
  - files_lock: 34.0.0
  - files_pdfviewer: 7.0.0-dev.0
  - files_reminders: 1.7.0
  - files_sharing: 1.26.0
  - files_trashbin: 1.24.0
  - files_versions: 1.27.0
  - firstrunwizard: 7.0.0-dev.0
  - flow_notifications: 5.0.0-beta.1
  - groupfolders: 22.0.0
  - guests: 4.7.4
  - logreader: 7.0.0
  - lookup_server_connector: 1.22.0
  - nextcloud_announcements: 6.0.0
  - notifications: 7.0.0-dev.1
  - notify_push: 1.3.3
  - oauth2: 1.22.0
  - password_policy: 6.0.0-dev.0
  - photos: 7.0.0
  - privacy: 6.0.0-dev.1
  - profile: 1.3.0
  - provisioning_api: 1.24.0
  - recognize: 12.0.0
  - recommendations: 7.0.0-dev.0
  - related_resources: 5.0.0-dev.0
  - richdocuments: 11.0.0-beta.1
  - serverinfo: 6.0.0-dev.0
  - settings: 1.17.0
  - sharebymail: 1.24.0
  - socialsharing_email: 4.1.0
  - spreed: 24.0.0-rc.2
  - support: 6.0.0
  - survey_client: 6.0.0-dev.0
  - systemtags: 1.24.0
  - text: 8.0.0
  - theming: 2.9.0
  - theming_customcss: 1.20.0
  - twofactor_backupcodes: 1.23.0
  - updatenotification: 1.24.0
  - user_oidc: 8.10.1
  - user_status: 1.14.0
  - viewer: 7.0.0-dev.0
  - weather_status: 1.14.0
  - webhook_listeners: 1.6.0
  - workflowengine: 2.16.0
Disabled:
  - app_api: 34.0.0 (installed 33.0.0)
  - circles: 34.0.0 (installed 31.0.0)
  - encryption: 2.22.0
  - end_to_end_encryption: 2.1.1 (installed 2.1.1)
  - impersonate: 4.0.0 (installed 4.0.0)
  - memories: 8.0.1 (installed 8.0.1)
  - previewgenerator: 5.13.0 (installed 5.13.0)
  - quota_warning: 1.23.0 (installed 1.23.0)
  - suspicious_login: 12.0.0-dev.0 (installed 12.0.0-dev.0)
  - testing: 1.23.0
  - twofactor_nextcloud_notification: 8.0.0 (installed 7.0.0)
  - twofactor_totp: 16.0.0 (installed 15.0.0)
  - user_ldap: 1.25.0 (installed 1.24.0)
  - user_saml: 8.0.1 (installed 8.0.1)
  - workflow_pdf_converter: 4.0.0 (installed 4.0.0)

Nextcloud Signing status

Nextcloud Logs

{"reqId":"9ty1HsQQy3zq7QeCa1NJ","level":2,"time":"2026-05-26T13:14:36+00:00","remoteAddr":"10.241.204.18","user":"axheli","app":"theming","method":"GET","url":"/apps/theming/manifest/settings?v=ba7e6a9a","scriptName":"/index.php","message":"conflict with value type from database","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36","version":"34.0.0.8","data":{"app":"theming","key":"cachebuster","type":"4","knownType":"8"},"id":"6a159cbc577ad"}


{"reqId":"9ty1HsQQy3zq7QeCa1NJ","level":3,"time":"2026-05-26T13:14:36+00:00","remoteAddr":"10.241.204.18","user":"axheli","app":"index","method":"GET","url":"/apps/theming/manifest/settings?v=ba7e6a9a","scriptName":"/index.php","message":"conflict with value type from database","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36","version":"34.0.0.8","exception":{"Exception":"OCP\\Exceptions\\AppConfigTypeConflictException","Message":"conflict with value type from database","Code":0,"Trace":[{"file":"/var/www/nextcloud/lib/private/AppConfig.php","line":378,"function":"getTypedValue","class":"OC\\AppConfig","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/Services/AppConfig.php","line":252,"function":"getValueString","class":"OC\\AppConfig","type":"->"},{"file":"/var/www/nextcloud/apps/theming/lib/Controller/ThemingController.php","line":459,"function":"getAppValueString","class":"OC\\AppFramework\\Services\\AppConfig","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":165,"function":"getManifest","class":"OCA\\Theming\\Controller\\ThemingController","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":78,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/App.php","line":137,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/Route/Router.php","line":324,"function":"main","class":"OC\\AppFramework\\App","type":"::"},{"file":"/var/www/nextcloud/lib/base.php","line":1159,"function":"match","class":"OC\\Route\\Router","type":"->"},{"file":"/var/www/nextcloud/index.php","line":25,"function":"handleRequest","class":"OC","type":"::"}],"File":"/var/www/nextcloud/lib/private/AppConfig.php","Line":519,"message":"conflict with value type from database","exception":"{\"class\":\"OCP\\Exceptions\\AppConfigTypeConflictException\",\"message\":\"conflict with value type from database\",\"code\":0,\"file\":\"/var/www/nextcloud/lib/private/AppConfig.php:519\",\"trace\":\"#0 /var/www/nextcloud/lib/private/AppConfig.php(378): OC\\AppConfig->getTypedValue()\\n#1 /var/www/nextcloud/lib/private/AppFramework/Services/AppConfig.php(252): OC\\AppConfig->getValueString()\\n#2 /var/www/nextcloud/apps/theming/lib/Controller/ThemingController.php(459): OC\\AppFramework\\Services\\AppConfig->getAppValueString()\\n#3 /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php(165): OCA\\Theming\\Controller\\ThemingController->getManifest()\\n#4 /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php(78): OC\\AppFramework\\Http\\Dispatcher->executeController()\\n#5 /var/www/nextcloud/lib/private/AppFramework/App.php(137): OC\\AppFramework\\Http\\Dispatcher->dispatch()\\n#6 /var/www/nextcloud/lib/private/Route/Router.php(324): OC\\AppFramework\\App::main()\\n#7 /var/www/nextcloud/lib/base.php(1159): OC\\Route\\Router->match()\\n#8 /var/www/nextcloud/index.php(25): OC::handleRequest()\\n#9 {main}\"}","CustomMessage":"conflict with value type from database"},"id":"6a159cbc577a2"}

Additional info

No response

[passibe15]

I am facing this as well after an update to 32.0.10.

After poking around with a bit of AI (sorry) it seems like the issue is that cachebuster is read as a string in ThemingController.php's getManifest():

server/apps/theming/lib/Controller/ThemingController.php

Line 459 in e290384

$cacheBusterValue = $this->appConfig->getAppValueString('cachebuster', '0');

But the stored value is in fact type int.

Changing getAppValueString to getAppValueInt, i.e.

$cacheBusterValue = $this->appConfig->getAppValueInt('cachebuster', '0');

fixed it for me.

(In general, from searching "codebuster" within the repo, it seems like this is handled somewhat inconsistently? As far as I can tell, cachebuster is sometimes treated as a string and sometimes as an int.)

[zomtec2311]

I can confirm this. in my case, the app theming causes this error
app: theming, key: cachebuster, type: 4, knownType: 8

[GeoSnipes]

Got this error too.

[dehdan]

Hi,

I can get this error go away by running these commands:

sudo -u www-data php /var/www/nextcloud/occ config:app:delete theming cachebuster sudo -u www-data php /var/www/nextcloud/occ maintenance:repair

But if I go back to Administration settings --> Theming and try to edit the theme this error is coming back.

[passibe15]

You can use the patch I mentioned above, this fixes it from coming back after theme changes.

[dehdan]

Hi,

I tried add it to the file in: /var/www/nextcloud/apps/theming/lib/Controller/ThemingController.php
After that i restarted the server, tried to change something in the theme but after that the error came back.
For example, my correct favicon is no longer showing and instead it shows a folder favicon...

[passibe15]

Hi, I'm not sure about the error coming back, maybe the patch only works on v32.

About the favicon, I believe the behavior has been changed (not sure when, but it must have been somewhat recently):
The favicon always displays the icon of the current app (e.g. Files, Activity, Photos, etc.) and not the custom favicon. However, the custom favicon should be visible on other pages such as file share links or the login page.
Probably you just noticed this new behavior now due to playing around with the cache.

[solracsf]

Fix at #61007