[Bug]: Manual app updates made web interface unreachable

[timglong]

⚠️ 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

After updating to AIO 13.3.0 (with Nextcloud Hub 26 Spring 34.0.0 RC4), manually updating apps via the Apps/Updates interface resulted in the web interface becoming unreachable. Stopping and restarting all containers brought the web interface back up again.

Additionally, there was no indication that the updates were taking place after clicking "Update to X.X.X". In my production environment, clicking Update triggers a spinning circle indicator, and then the updated app is removed from the Updates page. Navigating away from the Updates page and then returning to it cleared the updated apps.

I found the following issues (which I also experienced), but they don't seem to cover all of what I experienced.

• [Bug]: Update all available apps with single click button "Update all" is missing #61123

• [Bug]: Update all apps button missing / updated apps are still listed #61427

Steps to reproduce

1. Update to AIO 13.3.0 Beta (34.0.0 RC4) from AIO 13.2.1 Beta
2. Log in as admin and navigate to Apps/Updates
3. Manually update individual apps

Expected behavior

1. Updating apps does not impact the web interface.
2. After clicking Update for an app, there is a visual indicator that the update is taking place, after which the updated app is removed from the Updates page.

Nextcloud Server version

34

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.5

Web server

Apache (supported)

Database engine version

PostgreSQL

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

Updated from a MINOR version (ex. 32.0.1 to 32.0.2)

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

{
    "system": {
        "one-click-instance": true,
        "one-click-instance.user-limit": 100,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "apps_paths": [
            {
                "path": "\/var\/www\/html\/apps",
                "url": "\/apps",
                "writable": false
            },
            {
                "path": "\/var\/www\/html\/custom_apps",
                "url": "\/custom_apps",
                "writable": true
            }
        ],
        "check_data_directory_permissions": false,
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "password": "***REMOVED SENSITIVE VALUE***",
            "port": 6379,
            "timeout": 3,
            "read_timeout": 10
        },
        "overwritehost": "nextcloud.testing.mydomain.tld",
        "overwriteprotocol": "https",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "localhost",
            "nextcloud.testing.mydomain.tld"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "pgsql",
        "version": "34.0.0.10",
        "overwrite.cli.url": "https:\/\/nextcloud.testing.mydomain.tld\/",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "maintenance": false,
        "updatechecker": true,
        "updatedirectory": "\/nc-updater",
        "loglevel": 2,
        "app_install_overwrite": [
            "nextcloud-aio",
            "news"
        ],
        "log_type": "file",
        "logfile": "\/var\/www\/html\/data\/nextcloud.log",
        "log_rotate_size": 10485760,
        "log.condition": {
            "apps": [
                "admin_audit"
            ]
        },
        "preview_max_x": 2048,
        "preview_max_y": 2048,
        "jpeg_quality": 60,
        "enabledPreviewProviders": {
            "1": "OC\\Preview\\Image",
            "2": "OC\\Preview\\MarkDown",
            "3": "OC\\Preview\\MP3",
            "4": "OC\\Preview\\TXT",
            "5": "OC\\Preview\\OpenDocument",
            "6": "OC\\Preview\\Movie",
            "7": "OC\\Preview\\Krita",
            "0": "OC\\Preview\\Imaginary",
            "23": "OC\\Preview\\ImaginaryPDF",
            "24": "OCA\\Eurooffice\\Preview"
        },
        "enable_previews": true,
        "upgrade.disable-web": true,
        "mail_smtpmode": "smtp",
        "trashbin_retention_obligation": "auto, 30",
        "versions_retention_obligation": "auto, 30",
        "activity_expire_days": 30,
        "simpleSignUpLink.shown": false,
        "share_folder": "\/Shared",
        "one-click-instance.link": "https:\/\/nextcloud.com\/all-in-one\/",
        "upgrade.cli-upgrade-link": "https:\/\/github.com\/nextcloud\/all-in-one\/discussions\/2726",
        "maintenance_window_start": 100,
        "allow_local_remote_servers": true,
        "davstorage.request_timeout": 3600,
        "documentation_url.server_logs": "https:\/\/github.com\/nextcloud\/all-in-one\/discussions\/5425",
        "htaccess.RewriteBase": "\/",
        "dbpersistent": false,
        "auth.bruteforce.protection.enabled": true,
        "ratelimit.protection.enabled": true,
        "files_external_allow_create_new_local": false,
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "preview_imaginary_url": "***REMOVED SENSITIVE VALUE***",
        "preview_imaginary_key": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpauth": true,
        "mail_smtpport": "465",
        "mail_sendmailmode": "smtp",
        "mail_smtpstreamoptions": {
            "ssl": {
                "allow_self_signed": false,
                "verify_peer": true,
                "verify_peer_name": true
            }
        },
        "default_phone_region": "US",
        "serverid": 445,
        "log_type_audit": "file",
        "logfile_audit": "\/var\/www\/html\/data\/audit.log",
        "data-fingerprint": "fa6309432d9e5fffab1fff2d0ae1d3a9",
        "update_channel": "stable",
        "updater.release.channel": "beta",
        "eurooffice": {
            "editors_check_interval": 0,
            "jwt_secret": "19ce98a055336dab26a0b52b8ee82bb499f37af54b72a13c",
            "jwt_header": "AuthorizationJwt"
        },
        "DOMAIN": "nextcloud.testing.mydomain.tld",
        "AIO_VERSION": "v13.3.0"
    }
}

List of activated Apps

Enabled:
  - activity: 7.0.0
  - admin_audit: 1.24.0
  - appstore: 1.0.0
  - bruteforcesettings: 7.0.0
  - calendar: 6.5.0
  - circles: 34.0.0
  - cloud_federation_api: 1.18.0
  - comments: 1.24.0
  - contacts: 8.7.1
  - contactsinteraction: 1.15.0
  - dashboard: 7.14.0
  - dav: 1.39.0
  - deck: 1.18.2
  - eurooffice: 11.0.0
  - federatedfilesharing: 1.24.0
  - federation: 1.24.0
  - files: 2.6.0
  - files_downloadlimit: 5.2.0-dev.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
  - logreader: 7.0.0
  - lookup_server_connector: 1.22.0
  - news: 28.6.0
  - nextcloud-aio: 0.8.0
  - nextcloud_announcements: 6.0.0
  - notes: 6.0.0
  - notifications: 7.0.0-dev.1
  - notify_push: 1.3.3
  - oauth2: 1.22.0
  - office: 1.0.0
  - password_policy: 6.0.0-dev.0
  - privacy: 6.0.0-dev.1
  - profile: 1.3.0
  - provisioning_api: 1.24.0
  - recommendations: 7.0.0-dev.0
  - related_resources: 5.0.0-dev.0
  - richdocuments: 11.0.0
  - serverinfo: 6.0.0
  - settings: 1.17.0
  - sharebymail: 1.24.0
  - support: 6.0.0
  - survey_client: 6.0.0-dev.0
  - systemtags: 1.24.0
  - text: 8.0.0
  - theming: 2.9.0
  - twofactor_backupcodes: 1.23.0
  - twofactor_totp: 16.0.0
  - updatenotification: 1.24.0
  - 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)
  - encryption: 2.22.0
  - files_external: 1.26.0
  - photos: 7.0.0 (installed 6.0.0-dev.0)
  - suspicious_login: 12.0.0-dev.0
  - tasks: 0.18.0 (installed 0.18.0)
  - twofactor_nextcloud_notification: 8.0.0
  - user_ldap: 1.25.0

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

First Error from Admin/Logging:

Level: Error
Application: index

TypeErrorpreg_match(): Argument #2 ($subject) must be of type string, string given

1. /var/www/html/apps/theming/lib/ThemingDefaults.php - Line 197:

undefinedundefinedpreg_match(
  "/^\\#([0-9a-f]{3}|[0-9a-f]{6})$/i",
  ""
)

2. /var/www/html/apps/theming/lib/Capabilities.php - Line 88:

OCA\Theming\ThemingDefaults->getColorPrimary()

3. /var/www/html/lib/private/CapabilitiesManager.php - Line 60:

OCA\Theming\Capabilities->getCapabilities()

4. /var/www/html/lib/private/Template/JSConfigHelper.php - Line 141:

OC\CapabilitiesManager->getCapabilities(
  false,
  true
)

5. /var/www/html/lib/private/TemplateLayout.php - Line 249:

OC\Template\JSConfigHelper->getConfig()

6. /var/www/html/lib/private/Template/Template.php - Line 117:

OC\TemplateLayout->getPageTemplate(
  "user",
  "settings"
)

7. /var/www/html/lib/public/AppFramework/Http/TemplateResponse.php - Line 196:

OC\Template\Template->fetchPage(
  {
    "content": html content removed due to length
    "pageTitle": "Overview",
    "activeSectionId": "overview",
    "activeSectionType": "admin"
  }
)

8. /var/www/html/lib/private/AppFramework/Http/Dispatcher.php - Line 124:

OCP\AppFramework\Http\TemplateResponse->render()

9. /var/www/html/lib/private/AppFramework/App.php - Line 137:

OC\AppFramework\Http\Dispatcher->dispatch(
  {
    "__class__": "OCA\\Settings\\Controller\\AdminSettingsController"
  },
  "index"
)

10. /var/www/html/lib/private/Route/Router.php - Line 324:

OC\AppFramework\App::main(
  "OCA\\Settings\\Controller\\AdminSettingsController",
  "index",
  {
    "__class__": "OC\\AppFramework\\DependencyInjection\\DIContainer"
  },
  {
    "_route": "settings.adminsettings.index",
    "section": "overview"
  }
)

11. /var/www/html/lib/base.php - Line 1160:

OC\Route\Router->match(
  "/settings/admin"
)

12. /var/www/html/index.php - Line 25:

OC::handleRequest()

Additional info

Full logs

Initially reported here: nextcloud/all-in-one#8381

[BernieO]

Are you running Nextcloud-aio on an ARM-machine?

I have the same issue running Nextcloud (not aio) on an ARM machine. Can you try disabling opcache.jit? That helped in my case and for another user as well (see according post at help.nextcloud.com).

[timglong]

Are you running Nextcloud-aio on an ARM-machine?

No, this is an older Intel machine, specifically an i5-6600K.

[timglong]

I added the first error to the initial post and tried to format it the best I could. All of the errors are in the full log file, but trying to get them into a readable format is challenging (i.e., the first error has 12 sections, later ones have 45). They all seem to reference the same PHP issue:

preg_match(): Argument #2 ($subject) must be of type string, string given in file '/var/www/html/apps/theming/lib/ThemingDefaults.php' line 197

[MiniVader]

Did you already clear your PHP opcode cache? If not that's likely the culprit.