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Upgrade from 16.0.5 to 17.0.0 fails (apps/dav migration crashes) #17479

Description

@schniepp

Steps to reproduce

  1. Install 16.0.5
  2. Upgrade to 17.0.0
  3. issue occ upgrade

Expected behaviour

Upgrade procedure should complete and NC should run.

Actual behaviour

Upgrade crashes at "Updating ". NC is broken and cannot be used.

Server configuration

Operating system: ubuntu 18.04

Web server: apache 2.4.29

Database: mysql 5.7.27

PHP version: 7.2.22

Nextcloud version: 16.0.5/17.0.0

Updated from an older Nextcloud: 16.0.5. (Continuously updated since before NC10.)

Where did you install Nextcloud from: zip file from web page.

Signing status: ???

List of activated apps:

App list
Enabled:
  - activity: 2.10.1
  - admin_audit: 1.7.0
  - apporder: 0.8.0
  - audioplayer: 2.8.4
  - bruteforcesettings: 1.4.0
  - calendar: 1.7.1
  - carnet: 0.18.4
  - checksum: 0.4.3
  - cloud_federation_api: 1.0.0
  - comments: 1.7.0
  - contacts: 3.1.6
  - dav: 1.13.0
  - deck: 0.7.0
  - drawio: 0.9.4
  - event_update_notification: 1.0.0
  - external: 3.4.0
  - federatedfilesharing: 1.7.0
  - files: 1.12.0
  - files_antivirus: 2.2.0
  - files_downloadactivity: 1.6.0
  - files_external: 1.8.0
  - files_markdown: 2.1.0
  - files_mindmap: 0.0.15
  - files_pdfviewer: 1.6.0
  - files_rightclick: 0.15.1
  - files_sharing: 1.9.0
  - files_trackdownloads: 1.6.0
  - files_trashbin: 1.7.0
  - files_versions: 1.10.0
  - files_videoplayer: 1.6.0
  - firstrunwizard: 2.6.0
  - gallery: 18.4.0
  - impersonate: 1.4.0
  - logreader: 2.2.0
  - lookup_server_connector: 1.5.0
  - metadata: 0.10.0
  - music: 0.10.1
  - news: 14.0.0
  - nextcloud_announcements: 1.6.0
  - notifications: 2.5.0
  - oauth2: 1.5.0
  - ocdownloader: 1.7.2
  - passman: 2.3.2
  - password_policy: 1.7.0
  - passwords: 2019.10.0
  - previewgenerator: 2.1.0
  - privacy: 1.1.0
  - provisioning_api: 1.7.0
  - ransomware_protection: 1.5.0
  - richdocuments: 3.4.2
  - serverinfo: 1.7.0
  - sharerenamer: 2.7.2
  - spreed: 7.0.0
  - survey_client: 1.5.0
  - text: 1.1.0
  - theming: 1.8.0
  - twofactor_admin: 1.0.0
  - twofactor_backupcodes: 1.6.0
  - twofactor_nextcloud_notification: 2.1.1
  - updatenotification: 1.7.0
  - uploaddetails: 0.1.2
  - user_sql: 4.3.0
  - viewer: 1.1.0
  - workflowengine: 1.7.0
Disabled:
  - accessibility
  - bookmarks
  - camerarawpreviews
  - encryption
  - extract
  - federation
  - files_inotify
  - files_linkeditor
  - files_readmemd
  - groupfolders
  - ocsms
  - polls
  - radio
  - ransomware_detection
  - recommendations
  - sensorlogger
  - sharebymail
  - support
  - systemtags
  - tasks
  - timetracker
  - user_ldap
  - video_converter
  - weather

Nextcloud configuration:

Config report
<?php
$CONFIG = array (
  'apps_paths' => 
  array (
    0 => 
    array (
      'path' => '/opt/nextcloud/apps-added',
      'url' => '/apps-added',
      'writable' => true,
    ),
    1 => 
    array (
      'path' => '/opt/nextcloud/apps',
      'url' => '/apps',
      'writable' => false,
    ),
  ),
  'updatechecker' => false,
  'instanceid' => 'ocpgrep9qdhg',
  'passwordsalt' => '**************************',
  'secret' => '*******************************',
  'integrity.check.disabled' => true,
  'trusted_domains' => 
  array (
    0 => '********************',
  ),
  'datadirectory' => '/media/server/administration/owncloud/data',
  'overwrite.cli.url' => 'http://**************/owncloud',
  'htaccess.RewriteBase' => '/owncloud',
  'dbtype' => 'mysql',
  'version' => '17.0.0.9',
  'dbname' => 'nextcloud',
  'dbhost' => 'localhost',
  'dbtableprefix' => 'oc_',
  'dbuser' => 'oc_admin8',
  'dbpassword' => '************************',
  'logtimezone' => 'UTC',
  'installed' => true,
  'theme' => '',
  'mail_from_address' => 'cloud',
  'mail_smtpmode' => 'smtp',
  'mail_domain' => '************************',
  'maintenance' => false,
  'trashbin_retention_obligation' => '3, 5',
  'versions_retention_obligation' => '3, 5',
  'memcache.local' => '\\OC\\Memcache\\APCu',
  'filelocking.enabled' => 'true',
  'memcache.locking' => '\\OC\\Memcache\\Redis',
  'redis' => 
  array (
    'host' => 'localhost',
    'port' => 6379,
    'timeout' => 1.5,
  ),
  'loglevel' => 0,
  'logfile' => '***************************',
  'preview_libreoffice_path' => '/usr/bin/soffice',
  'enable_previews' => true,
  'preview_max_scale_factor' => 1,
  'preview_max_x' => 1920,
  'preview_max_y' => 1000,
  'preview_max_filesize_image' => -1,
  'enabledPreviewProviders' => 
  array (
    0 => 'OC\\Preview\\Images',
    1 => 'OC\\Preview\\PNG',
    2 => 'OC\\Preview\\BMP',
    3 => 'OC\\Preview\\JPEG',
    4 => 'OC\\Preview\\GIF',
    5 => 'OC\\Preview\\TIFF',
    6 => 'OC\\Preview\\XBitmap',
    7 => 'OC\\Preview\\Photoshop',
    8 => 'OC\\Preview\\Illustrator',
    9 => 'OC\\Preview\\SVG',
    10 => 'OC\\Preview\\PDF',
    11 => 'OC\\Preview\\Postscript',
    12 => 'OC\\Preview\\Illustrator',
    13 => 'OC\\Preview\\Movie',
    14 => 'OC\\Preview\\MP3',
    15 => 'OC\\Preview\\TXT',
    16 => 'OC\\Preview\\Markdown',
    17 => 'OC\\Preview\\Font',
    18 => 'OC\\Preview\\MSOffice2003',
    19 => 'OC\\Preview\\MSOffice2007',
    20 => 'OC\\Preview\\MSOfficeDoc',
    21 => 'OC\\Preview\\OpenDocument',
    22 => 'OC\\Preview\\StarOffice',
  ),
  'enable_movie_transcode' => true,
  'updater.release.channel' => 'stable',
  'mysql.utf8mb4' => true,
  'mail_smtphost' => '***************',
  'mail_smtpauthtype' => 'LOGIN',
  'mail_smtpauth' => 1,
  'mail_smtpname' => '****************',
  'mail_smtppassword' =>'***************',
  'mail_smtpport' => '587',
  'has_rebuilt_cache' => true,
  'user_backend_sql_raw' => 
  array (
    'db_type' => 'mariadb',
    'db_host' => 'localhost',
    'db_port' => '3306',
    'db_name' => '*************',
    'db_user' => '************',
    'db_password' => '*************',
    'mariadb_charset' => 'utf8',
  ),
  'app_install_overwrite' => 
  array (
    0 => 'ldaporg',
    1 => 'user_sql',
  ),
  'ldapIgnoreNamingRules' => false,
  'ldapProviderFactory' => 'OCA\\User_LDAP\\LDAPProviderFactory',
);

Are you using external storage, if yes which one: no

Are you using encryption: no

Are you using an external user-backend, if yes which one: no

Client configuration

Browser: Chrome

Operating system: ubuntu 18.04

Logs

Web server error log

This is the trace from the occ updater:

Web server error log
Updating <dav> ...
An unhandled exception has been thrown:
TypeError: Return value of OCA\DAV\Migration\Version1012Date20190808122342::changeSchema() must implement interface OCP\DB\ISchemaWrapper or be null, none returned in /opt/nextcloud/apps/dav/lib/Migration/Version1012Date20190808122342.php:115
Stack trace:
#0 /opt/nextcloud/lib/private/DB/MigrationService.php(475): OCA\DAV\Migration\Version1012Date20190808122342->changeSchema(Object(OC\Migration\SimpleOutput), Object(Closure), Array)
#1 /opt/nextcloud/lib/private/DB/MigrationService.php(411): OC\DB\MigrationService->executeStep('1012Date2019080...', false)
#2 /opt/nextcloud/lib/private/legacy/app.php(906): OC\DB\MigrationService->migrate()
#3 /opt/nextcloud/lib/private/Updater.php(373): OC_App::updateApp('dav')
#4 /opt/nextcloud/lib/private/Updater.php(252): OC\Updater->doAppUpgrade()
#5 /opt/nextcloud/lib/private/Updater.php(128): OC\Updater->doUpgrade('17.0.0.9', '16.0.5.1')
#6 /opt/nextcloud/core/Command/Upgrade.php(258): OC\Updater->upgrade()
#7 /opt/nextcloud/3rdparty/symfony/console/Command/Command.php(255): OC\Core\Command\Upgrade->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#8 /opt/nextcloud/3rdparty/symfony/console/Application.php(908): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#9 /opt/nextcloud/3rdparty/symfony/console/Application.php(269): Symfony\Component\Console\Application->doRunCommand(Object(OC\Core\Command\Upgrade), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#10 /opt/nextcloud/3rdparty/symfony/console/Application.php(145): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#11 /opt/nextcloud/lib/private/Console/Application.php(213): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#12 /opt/nextcloud/console.php(97): OC\Console\Application->run()
#13 /opt/nextcloud/occ(11): require_once('/opt/nextcloud/...')</summary>

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