[Bug]: user_oidc 8.8.0 crashes on boot on Nextcloud 30.0.4 (OCP\ServerVersion cannot be resolved)

[NlightN22]

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Steps to reproduce

1. Run Nextcloud AIO with Nextcloud 30.0.4.1 / 30.0.4
2. Keep user_oidc enabled in Nextcloud
3. Open the Nextcloud login page and use the OpenID Connect login button
4. Observe that local admin login still works, but the OIDC login flow is broken
5. Check nextcloud.log

Expected behaviour

user_oidc should boot normally and the OpenID Connect login flow should redirect the user to the configured provider and allow successful authentication.

Actual behaviour

The user_oidc app fails during service registration / boot.

Observed errors:

Error during app service registration: Could not resolve OCP\ServerVersion! Class "OCP\ServerVersion" does not exist

Trace excerpt:
... OCA\UserOIDC\User\Backend ...
... /var/www/html/custom_apps/user_oidc/lib/AppInfo/Application.php line 55 ...

Could not boot user_oidc: Failed to create closure from callable: first array member is not a valid class name or object

Trace excerpt:
... /var/www/html/custom_apps/user_oidc/lib/AppInfo/Application.php line 76 ...
Closure::fromCallable([null,"injectSession"])

Additional notes:

• Local admin login still works
• Only the OpenID Connect login flow is broken
• Provider configuration is still present in the app settings
• Running grep inside the container did not find class ServerVersion in the current Nextcloud codebase

Server configuration

Web server: Apache (Nextcloud AIO)
Database: PostgreSQL (Nextcloud AIO)
PHP version: 8.3.14
Nextcloud version: 30.0.4.1 (30.0.4)

List of activated apps

Enabled:
  - activity: 3.0.0
  - admin_audit: 1.20.0
  - app_api: 4.0.3
  - bruteforcesettings: 3.0.0
  - calendar: 5.5.16
  - circles: 30.0.0
  - cloud_federation_api: 1.13.0
  - comments: 1.20.1
  - contacts: 7.3.17
  - contactsinteraction: 1.11.0
  - dashboard: 7.10.0
  - dav: 1.31.1
  - deck: 1.14.8
  - drawio: 3.0.9
  - federatedfilesharing: 1.20.0
  - federation: 1.20.0
  - files: 2.2.0
  - files_downloadlimit: 3.0.0
  - 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
  - firstrunwizard: 3.0.0
  - fulltextsearch: 30.0.2
  - fulltextsearch_elasticsearch: 30.0.1
  - logreader: 3.0.0
  - lookup_server_connector: 1.18.0
  - ncdownloader: 1.0.23
  - nextcloud-aio: 0.7.0
  - nextcloud_announcements: 2.0.0
  - notes: 4.13.1
  - notifications: 3.0.0
  - notify_push: 1.3.1
  - oauth2: 1.18.1
  - password_policy: 2.0.0
  - photos: 3.0.2
  - privacy: 2.0.0
  - provisioning_api: 1.20.0
  - recommendations: 3.0.0
  - related_resources: 1.5.0
  - richdocuments: 8.5.14
  - serverinfo: 2.0.0
  - settings: 1.13.0
  - sharebymail: 1.20.0
  - spreed: 20.1.11
  - support: 2.0.0
  - survey_client: 2.0.0
  - systemtags: 1.20.0
  - tasks: 0.16.1
  - text: 4.1.0
  - theming: 2.5.0
  - twofactor_backupcodes: 1.19.0
  - twofactor_totp: 12.0.0-dev
  - user_oidc: 8.8.0
  - user_status: 1.10.0
  - viewer: 3.0.0
  - weather_status: 1.10.0
  - webhook_listeners: 1.1.0-dev
  - whiteboard: 1.5.7
  - workflowengine: 2.12.0
Disabled:
  - encryption: 2.18.0
  - files_external: 1.22.0
  - suspicious_login: 8.0.0
  - twofactor_nextcloud_notification: 4.0.0
  - user_ldap: 1.21.0

Nextcloud configuration

Deployment type: Docker / Nextcloud AIO

Nextcloud status:
  - installed: true
  - version: 30.0.4.1
  - versionstring: 30.0.4
  - edition:
  - maintenance: false
  - needsDbUpgrade: false
  - productname: Nextcloud
  - extendedSupport: false

Relevant notes:
- user_oidc provider configuration is still present in app config
- OIDC provider settings are visible in the admin UI
- I did not include full system config output because it may contain sensitive values

Browser

Browser name: Firefox
Browser version: 149.0
Operating system: Windows 10 (Windows_NT 10.0.22621)

Browser log

No browser-side debugging collected yet.
The main error is visible in Nextcloud server logs.

Additional debugging details

Command:
grep -R "class ServerVersion" /var/www/html/lib /var/www/html/apps /var/www/html/3rdparty 2>/dev/null

Result:
No matches found

[CarlSchwan]

ServerVersion is only defined starting with nc 31 🥲

I'll try to fix this, meanwhile a good workwourd is to update even 31 is now EOL

[julien-nc]

@CarlSchwan You could use class_exists(\OCP\Files\ISetupManager::class). Not ideal but consistent with other parts of the app.

[CarlSchwan]

Fix: #1407