I downloaded and installed your app from the appstore inside NC 11RC1. Everything worked fine even the preview:pre-generate command worked perfectly. I tried the generate-all feature and that was the error message I got.

occ preview:generate-all

An unhandled exception has been thrown:
Error: Call to a member function getPath() on null in /var/www/magicbroccoli.de/nextcloud/lib/private/Preview/GeneratorHelper.php:72
Stack trace:
#0 /var/www/magicbroccoli.de/nextcloud/lib/private/Preview/GeneratorHelper.php(53): OC\Preview\GeneratorHelper->getViewAndPath(NULL)
#1 /var/www/magicbroccoli.de/nextcloud/lib/private/Preview/Generator.php(155): OC\Preview\GeneratorHelper->getThumbnail(Object(OC\Preview\MP3), Object(OC\Files\Node\File), 1024, 1024)
#2 /var/www/magicbroccoli.de/nextcloud/lib/private/Preview/Generator.php(108): OC\Preview\Generator->getMaxPreview(Object(OC\Files\SimpleFS\SimpleFolder), Object(OC\Files\Node\File), 'audio/mpeg')
#3 /var/www/magicbroccoli.de/nextcloud/lib/private/PreviewManager.php(182): OC\Preview\Generator->getPreview(Object(OC\Files\Node\File), 32, 32, true, 'fill', 'audio/mpeg')
#4 /var/www/magicbroccoli.de/nextcloud/apps/previewgenerator/lib/Command/Generate.php(167): OC\PreviewManager->getPreview(Object(OC\Files\Node\File), 32, 32, true)
#5 /var/www/magicbroccoli.de/nextcloud/apps/previewgenerator/lib/Command/Generate.php(155): OCA\PreviewGenerator\Command\Generate->parseFile(Object(OC\Files\Node\File))
#6 /var/www/magicbroccoli.de/nextcloud/apps/previewgenerator/lib/Command/Generate.php(153): OCA\PreviewGenerator\Command\Generate->parseFolder(Object(OC\Files\Node\Folder))
#7 /var/www/magicbroccoli.de/nextcloud/apps/previewgenerator/lib/Command/Generate.php(142): OCA\PreviewGenerator\Command\Generate->parseFolder(Object(OC\Files\Node\Folder))
#8 /var/www/magicbroccoli.de/nextcloud/apps/previewgenerator/lib/Command/Generate.php(96): OCA\PreviewGenerator\Command\Generate->generateUserPreviews(Object(OC\User\User))
#9 /var/www/magicbroccoli.de/nextcloud/lib/private/User/Manager.php(410): OCA\PreviewGenerator\Command\Generate->OCA\PreviewGenerator\Command\{closure}(Object(OC\User\User))
#10 /var/www/magicbroccoli.de/nextcloud/apps/previewgenerator/lib/Command/Generate.php(97): OC\User\Manager->callForSeenUsers(Object(Closure))
#11 /var/www/magicbroccoli.de/nextcloud/3rdparty/symfony/console/Command/Command.php(256): OCA\PreviewGenerator\Command\Generate->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#12 /var/www/magicbroccoli.de/nextcloud/3rdparty/symfony/console/Application.php(818): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#13 /var/www/magicbroccoli.de/nextcloud/3rdparty/symfony/console/Application.php(186): Symfony\Component\Console\Application->doRunCommand(Object(OCA\PreviewGenerator\Command\Generate), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#14 /var/www/magicbroccoli.de/nextcloud/3rdparty/symfony/console/Application.php(117): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#15 /var/www/magicbroccoli.de/nextcloud/lib/private/Console/Application.php(169): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#16 /var/www/magicbroccoli.de/nextcloud/console.php(90): OC\Console\Application->run()
#17 /var/www/magicbroccoli.de/nextcloud/occ(11): require_once('/var/www/magicb...')
#18 {main}

I am using Nextcloud 11RC1 on a debian mashine with apache2 and php7.0.14 installed.

Hello Dev, ive encountered an Error which i cant solve on my own. Im using Nextcloud 11.0.2 and php 7.0.8-0ubuntu0.16.04.3 with apache2 as the webserver.

When i start your tool from my terminal, it runs for a few seconds (no outputs are made to the console so im assuming it does at least something), and then it throws an exception. CPU usage is slightly higher than normal.

Thanks for your help, and if i can assist you further, feel free to ask!

Sorry for the missreferences, my log contained hashtags, which function i didnt knew... The stacktrace:

An unhandled exception has been thrown: Error: Call to a member function file_get_contents() on null in /var/www/mycloud/lib/private/Files/Filesystem.php:719 Stack trace: 0 /var/www/mycloud/lib/private/legacy/image.php(597): OC\Files\Filesystem::file_get_contents('/var/www/myclou...') 1 /var/www/mycloud/lib/private/Preview/MP3.php(80): OC_Image->loadFromFile('/var/www/myclou...') 2 /var/www/mycloud/lib/private/Preview/MP3.php(64): OC\Preview\MP3->getNoCoverThumbnail() 3 /var/www/mycloud/lib/private/Preview/GeneratorHelper.php(54): OC\Preview\MP3->getThumbnail('/files_trashbin...', 256, 256, false, Object(OC\Files\View)) 4 /var/www/mycloud/lib/private/Preview/Generator.php(155): OC\Preview\GeneratorHelper->getThumbnail(Object(OC\Preview\MP3), Object(OC\Files\Node\File), 256, 256) 5 /var/www/mycloud/lib/private/Preview/Generator.php(108): OC\Preview\Generator->getMaxPreview(Object(OC\Files\SimpleFS\SimpleFolder), Object(OC\Files\Node\File), 'audio/mpeg') 6 /var/www/mycloud/lib/private/PreviewManager.php(182): OC\Preview\Generator->getPreview(Object(OC\Files\Node\File), 32, 32, true, 'fill', 'audio/mpeg') 7 /var/www/mycloud/apps/previewgenerator/lib/Command/PreGenerate.php(158): OC\PreviewManager->getPreview(Object(OC\Files\Node\File), 32, 32, true) 8 /var/www/mycloud/apps/previewgenerator/lib/Command/PreGenerate.php(181): OCA\PreviewGenerator\Command\PreGenerate->processFile(Object(OC\Files\Node\File)) 9 /var/www/mycloud/apps/previewgenerator/lib/Command/PreGenerate.php(183): OCA\PreviewGenerator\Command\PreGenerate->processFolder(Object(OC\Files\Node\Folder)) 10 /var/www/mycloud/apps/previewgenerator/lib/Command/PreGenerate.php(183): OCA\PreviewGenerator\Command\PreGenerate->processFolder(Object(OC\Files\Node\Folder)) 11 /var/www/mycloud/apps/previewgenerator/lib/Command/PreGenerate.php(183): OCA\PreviewGenerator\Command\PreGenerate->processFolder(Object(OC\Files\Node\Folder)) 12 /var/www/mycloud/apps/previewgenerator/lib/Command/PreGenerate.php(183): OCA\PreviewGenerator\Command\PreGenerate->processFolder(Object(OC\Files\Node\Folder)) 13 /var/www/mycloud/apps/previewgenerator/lib/Command/PreGenerate.php(183): OCA\PreviewGenerator\Command\PreGenerate->processFolder(Object(OC\Files\Node\Folder)) 14 /var/www/mycloud/apps/previewgenerator/lib/Command/PreGenerate.php(183): OCA\PreviewGenerator\Command\PreGenerate->processFolder(Object(OC\Files\Node\Folder)) 15 /var/www/mycloud/apps/previewgenerator/lib/Command/PreGenerate.php(183): OCA\PreviewGenerator\Command\PreGenerate->processFolder(Object(OC\Files\Node\Folder)) 16 /var/www/mycloud/apps/previewgenerator/lib/Command/PreGenerate.php(150): OCA\PreviewGenerator\Command\PreGenerate->processFolder(Object(OC\Files\Node\Folder)) 17 /var/www/mycloud/apps/previewgenerator/lib/Command/PreGenerate.php(113): OCA\PreviewGenerator\Command\PreGenerate->processRow(Array) 18 /var/www/mycloud/apps/previewgenerator/lib/Command/PreGenerate.php(91): OCA\PreviewGenerator\Command\PreGenerate->startProcessing() 19 /var/www/mycloud/3rdparty/symfony/console/Command/Command.php(256): OCA\PreviewGenerator\Command\PreGenerate->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput)) 20 /var/www/mycloud/3rdparty/symfony/console/Application.php(818): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput)) 21 /var/www/mycloud/3rdparty/symfony/console/Application.php(186): Symfony\Component\Console\Application->doRunCommand(Object(OCA\PreviewGenerator\Command\PreGenerate), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput)) 22 /var/www/mycloud/3rdparty/symfony/console/Application.php(117): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput)) 23 /var/www/mycloud/lib/private/Console/Application.php(169): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput)) 24 /var/www/mycloud/console.php(90): OC\Console\Application->run() 25 /var/www/mycloud/occ(11): require_once('/var/www/myclou...')

Some square preview images generated with command $ occ preview:generate-all -vvv are a crop of the original images and the aspect ratio are not preserved. On the other hand, the square preview images generated by web interface of Nextcloud are correctly. They respect the aspect ratios and letterboxed correctly.

Environment:

• Nextcloud docker: linuxserver/nextcloud:latest

• Nextcloud version 24.0.6
• previewgenerator version 5.1.0

• imaginary docker: h2non/imaginary:latest

• Imaginary version 1.2.4

• host OS: DSM 7.1.1-42962 Update 1
• hardware: Synology DS-918+

The content of the config.php:

<?php
$CONFIG = array (
  'memcache.local' => '\\OC\\Memcache\\APCu',
  'memcache.distributed' => '\\OC\\Memcache\\Redis',
  'memcache.locking' => '\\OC\\Memcache\\Redis',
  'redis' => 
  array (
    'host' => 'redis',
    'port' => 6379,
    'timeout' => 1.5,
  ),
  'filelocking.enabled' => true,
  'datadirectory' => '/data',
  'instanceid' => '<omitted for security>',
  'passwordsalt' => '<omitted for security>',
  'secret' => '<omitted for security>',
  'trusted_domains' => 
  array (
    0 => '<omitted> for security>',
  ),
  'dbtype' => 'mysql',
  'version' => '24.0.6.1',
  'trusted_proxies' => ['swag'],
  'overwrite.cli.url' => '<omitted for security>',
  'dbname' => 'nextcloud',
  'dbhost' => '10.27.0.40:3306',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'mysql.utf8mb4' => true,
  'dbuser' => '<omitted for security>',
  'dbpassword' => '<omitted for security>',
  'installed' => true,
  'app_install_overwrite' => 
  array (
    0 => 'files_excludedirs',
  ),
  'default_phone_region' => 'GB',
  'maintenance' => false,
  'mail_smtpmode' => 'smtp',
  'mail_smtpsecure' => 'ssl',
  'mail_sendmailmode' => 'smtp',
  'mail_smtpauth' => 1,
  'mail_from_address' => 'No.Reply',
  'mail_domain' => '<omitted for security>',
  'mail_smtpauthtype' => 'LOGIN',
  'mail_smtphost' => '<omitted for security>',
  'mail_smtpport' => '465',
  'mail_smtpname' => '<omitted for security>',
  'mail_smtppassword' => '<omitted for security>',
  'preview_max_x' => null,
  'preview_max_y' => null,
  'jpeg_quality' => '60',
  'preview_max_scale_factor' => 1,
  'enabledPreviewProviders' => [
    'OC\Preview\MP3',
    'OC\Preview\TXT',
    'OC\Preview\MarkDown',
    'OC\Preview\OpenDocument',
    'OC\Preview\Krita',
    'OC\Preview\Imaginary',
  ],
  'preview_imaginary_url' => 'http://imaginary:9000',
);

The previewgenerator settings:

$ php /config/www/nextcloud/occ config:app:get previewgenerator squareSizes
64 256 1024
$ php /config/www/nextcloud/occ config:app:get previewgenerator widthSizes
64 256 1024
$ php /config/www/nextcloud/occ config:app:get previewgenerator heightSizes
64 256 1024

A sample of an original image:

The preview generated for both grid view and detailed view on the Files pane.

Another example of an original image:

The preview generated for both grid view and detailed view on the Files pane.

Hello, when running whit www user : php occ preview:pre-generate the app's stop and the error is :

2018-07-17T21:18:26+00:00 2018-07-17T21:18:26+00:00 [OCP\Files\NotPermittedException] 2018-07-17T21:18:26+00:00 No create permission for folder 2018-07-17T21:18:26+00:00 2018-07-17T21:18:26+00:00

System is UCS with NC13.04 using

AD integration with Windows Server 2012R2 I have test, modify the permission to the folder to 777, and not resolve the problem,

Thanks for the read,

Command runs fine and builds a large cache of previews in the appdata_xxxx/preview folder, but none of these files appear to be used by nextcloud, and the gallery app makes on-demand previews in the user/thumbnails folder instead of using the previews generated by this app. Have I configured something incorrectly?

I'm trying to generate previews for 3.3TB of data. I ran ./occ preview:generate-all -vvv and this process is using a lot of RAM, and eventually exits by its own.

NextCloud is running in a container using the official Docker image.

What should I do to complete the process and generate all previews ?

For external storage mounts one can disable previews:

This change respects this setting and skips folders with disabled previews:

2020-05-04T15:52:15+00:00 Scanning folder /hashworks/files
2020-05-04T15:52:15+00:00 Skipping folder /hashworks/files/NoMedia
2020-05-04T15:52:15+00:00 Scanning folder /hashworks/files/Photos
[...]
2020-05-04T15:52:15+00:00 Skipping folder /hashworks/files/GDrive

Resolves #151.

Hi,

after 2 days that the process runs for hours, I have start the command with verbose flag: occ preview:pre-generate --force -vvv it don't stop and seems analyze continuously and circularly all the images.

I am not sure if it is a memory leak, but it really looks like. I have php.ini set to 16GB and still can not make generate-all finishes.I have about 32k pictures in my nextcloud folder, when I run preview:generate-all I can see the memory use increasing until it crashes, it looks like it is not releasing memory after procesing each image. So all images are in memory until it crashes.

Using version 2.3.0 inside docker container.

When running occ config:app:set --value="32 64 1024" previewgenerator squareSizes i get error Too many arguments When i try to run it with only one value eg occ config:app:set --value="32" previewgenerator squareSizes It works.

occ config:app:set previewgenerator widthSizes  --value="256 384"

                                                                  
  Too many arguments, expected arguments "command" "app" "name".  
                                                                  

config:app:set [--output [OUTPUT]] [--value VALUE] [--update-only] [--] <app> <name>

Running Preview Generator 3.0.1 Nextcloud 20.0.3

According to the desciption

Listen to events that a file has been writen or modified and store it in the database

an tests with my NextCloud installation it seems, that preview:generate-all does not include external storage. Is that right?

If so: It would be a nice feature for future versions, to generate previews for external storage content (e.g. with an additional trigger like ./occ preview:generate-all [include-external]). I've added my photo collection to my NextCloud (runnig on a Raspberry PI 3) via SMB...and the on-demand generation speed of the thumbnail pics is not really satisfying...

Thanks a lot in advance!

Hello,

if the previewgenerator is activated, my cron won't run anymore...

root@cloud:/home/administrator# sudo -u www-data php -f /var/www/nextcloud/cron.php Error: Call to a member function getUID() on null in /var/www/nextcloud/apps/maps/lib/Service/PhotofilesService.php:154 Stack trace: #0 /var/www/nextcloud/apps/maps/lib/BackgroundJob/UpdatePhotoByFileJob.php(56): OCA\Maps\Service\PhotofilesService->updateByFileNow() #1 /var/www/nextcloud/lib/public/BackgroundJob/Job.php(78): OCA\Maps\BackgroundJob\UpdatePhotoByFileJob->run() #2 /var/www/nextcloud/lib/public/BackgroundJob/QueuedJob.php(58): OCP\BackgroundJob\Job->start() #3 /var/www/nextcloud/lib/public/BackgroundJob/QueuedJob.php(48): OCP\BackgroundJob\QueuedJob->start() #4 /var/www/nextcloud/cron.php(152): OCP\BackgroundJob\QueuedJob->execute() #5 {main}

after disabling again everything is fine.

The app does not use the temporary directory defined in the config/config.php nor the one defined in php.ini under 'sys_temp_dir'. My normal /tmp dir is tmpfs and limited in space. The result after a occ preview:generate-all was a server down after the tmp directory was full, until I debugged the problem.

Edit: I would actually expect the temp files to be removed by the app as soon as they have done their job.

I'm running Nextcloud 25 in a Kubernetes cluster. This is all running fine and has been for over a year. I ran previewgenerator some time ago. However, I've just noticed that running ./occ preview:pre-generate only ever returns "Command is already running."

I've tried to restart the containers, redeploy them, disable and re-enable previewgenerator all to no avail. Is there some way to force the pre-generate? I've tried to read the code to see if I can delete something. However, I'm not very familiar with how Nextcloud extensions work.

Hi,

I generated all previews (with the inital command):

sudo -u www-data php /var/www/nextcloud/occ preview:generate-all -vvv

And they are done:

2022-11-21T10:38:55+00:00 Scanning folder /Dennis/files/Photos/2022/11 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/20221101_120324.jpg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/20221101_132818.jpg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/20221101_132830.jpg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/20221101_135123.jpg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/20221102_161841.jpg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/20221106_124829.jpg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/20221106_132902.mp4 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/20221113_121812.mp4 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/20221113_122010.mp4 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/20221113_122025.jpg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/20221113_173338.jpg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/20221114_141021.jpg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/20221114_141031.jpg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/20221119_085407.jpg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/IMG_20221106_111026.jpg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/2022/11/IMG_20221106_111028.jpg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Photos/Readme.md 2022-11-21T10:38:55+00:00 Scanning folder /Dennis/files/Talk 2022-11-21T10:38:55+00:00 Scanning folder /Dennis/files/Vorlagen 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Vorlagen/Business model canvas.odg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Vorlagen/Diagram & table.ods 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Vorlagen/Elegant.odp 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Vorlagen/Expense report.ods 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Vorlagen/Flowchart.odg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Vorlagen/Invoice.odt 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Vorlagen/Letter.odt 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Vorlagen/Meeting notes.md 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Vorlagen/Mindmap.odg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Vorlagen/Org chart.odg 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Vorlagen/Product plan.md 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Vorlagen/Readme.md 2022-11-21T10:38:55+00:00 Generating previews for /Dennis/files/Vorlagen/Simple.odp

My config:

'preview_libreoffice_path' => '/usr/bin/libreoffice', 'enable_previews' => true, 'enabledPreviewProviders' => array ( 0 => 'OC\\Preview\\TXT', 1 => 'OC\\Preview\\MarkDown', 2 => 'OC\\Preview\\OpenDocument', 3 => 'OC\\Preview\\PDF', 4 => 'OC\\Preview\\MSOffice2003', 5 => 'OC\\Preview\\MSOfficeDoc', 6 => 'OC\\Preview\\Image', 7 => 'OC\\Preview\\Photoshop', 8 => 'OC\\Preview\\TIFF', 9 => 'OC\\Preview\\SVG', 10 => 'OC\\Preview\\Font', 11 => 'OC\\Preview\\MP3', 12 => 'OC\\Preview\\Movie', 13 => 'OC\\Preview\\MKV', 14 => 'OC\\Preview\\MP4', 15 => 'OC\\Preview\\AVI', ),

Still it does not show preview pictures for Videos when I browser the media. Did I forget a configuration?

Thanks, Dennis

I don't know who to blame, but the previewgenerator produces 500 Internal Server Error when trying to generate previews for docs, pdf etc. All what's thrown against the office setup of the nextcloud. In my case, onlyoffice with it's built-in documentserver.

• Nextcloud 25.0.1
• documentserver_community: 0.1.13
• previewgenerator: 5.1.1
• onlyoffice: 7.6.8

Server Log

{
  "level": "error",
  "ts": 1668425667.9303558,
  "logger": "http.log.access.log0",
  "msg": "handled request",
  "request": {
    "remote_ip": "127.0.0.1",
    "remote_port": "48882",
    "proto": "HTTP/1.1",
    "method": "POST",
    "host": "nextcloud.tld",
    "uri": "/apps/documentserver_community/ConvertService.ashx",
    "headers": {
      "Content-Type": [
        "application/json"
      ],
      "User-Agent": [
        "Nextcloud Server Crawler"
      ],
      "Accept-Encoding": [
        "gzip"
      ],
      "Content-Length": [
        "314"
      ]
    },
    "tls": {
      "resumed": false,
      "version": 772,
      "cipher_suite": 4865,
      "proto": "http/1.1",
      "server_name": "nextcloud.tld"
    }
  },
  "user_id": "",
  "duration": 0.988457621,
  "size": 1313,
  "status": 500,
  "resp_headers": {
    "X-Robots-Tag": [
      "none"
    ],
    "Cache-Control": [
      "no-store, no-cache, must-revalidate"
    ],
    "Referrer-Policy": [
      "no-referrer"
    ],
    "X-Content-Type-Options": [
      "nosniff"
    ],
    "Content-Encoding": [
      "gzip"
    ],
    "Vary": [
      "Accept-Encoding"
    ],
    "Content-Security-Policy": [
      "default-src 'self'; script-src 'self' 'nonce-blhVK2dBcG1CR3QyUitrU1RSRmdER1lmcdQUdVWkl6OWp4MkQwMFpyQUVasD06OGc5VTF6bE5VeU1FRjZNbUtYHWJAdlVDk3V2k1cmV3Y0F0aUtTaHRPS2FRWT0='; style-src 'self' 'unsafe-inline'; frame-src *; img-src * data: blob:; font-src 'self' data:; media-src *; connect-src *; object-src 'none'; base-uri 'self';"
    ],
    "Set-Cookie": [],
    "X-Xss-Protection": [
      "1; mode=block"
    ],
    "Pragma": [
      "no-cache"
    ],
    "Content-Type": [
      "text/html; charset=UTF-8"
    ],
    "X-Permitted-Cross-Domain-Policies": [
      "none"
    ],
    "Expires": [
      "Thu, 19 Nov 1981 08:52:00 GMT"
    ],
    "Server": [
      "Caddy"
    ],
    "Alt-Svc": [
      "h3=\":443\"; ma=2592000"
    ],
    "Strict-Transport-Security": [
      "max-age=31536000;"
    ],
    "Status": [
      "500 Internal Server Error"
    ],
    "X-Frame-Options": [
      "SAMEORIGIN"
    ]
  }
}

Nextcloud Log

[index] Error: OCA\DocumentServer\Document\DocumentConversionException: Segmentation fault (core dumped)
 at <<closure>>

 0. /var/www/nextcloud/apps/documentserver_community/lib/DocumentConverter.php line 125
    OCA\DocumentServer\Document\ConverterBinary->run()
 1. /var/www/nextcloud/apps/documentserver_community/lib/DocumentConverter.php line 113
    OCA\DocumentServer\DocumentConverter->runCommand()
 2. /var/www/nextcloud/apps/documentserver_community/lib/DocumentConverter.php line 49
    OCA\DocumentServer\DocumentConverter->convertFiles()
 3. /var/www/nextcloud/apps/documentserver_community/lib/Document/DocumentStore.php line 98
    OCA\DocumentServer\DocumentConverter->getEditorBinary()
 4. /var/www/nextcloud/apps/documentserver_community/lib/LocalAppData.php line 102
    OCA\DocumentServer\Document\DocumentStore->OCA\DocumentServer\Document\{closure}("*** sensitive parameters replaced ***")
 5. /var/www/nextcloud/apps/documentserver_community/lib/Document/DocumentStore.php line 99
    OCA\DocumentServer\LocalAppData->getReadWriteLocalPath()
 6. /var/www/nextcloud/apps/documentserver_community/lib/Controller/ConvertController.php line 59
    OCA\DocumentServer\Document\DocumentStore->getDocumentForEditor()
 7. /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php line 225
    OCA\DocumentServer\Controller\ConvertController->convert()
 8. /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php line 133
    OC\AppFramework\Http\Dispatcher->executeController()
 9. /var/www/nextcloud/lib/private/AppFramework/App.php line 172
    OC\AppFramework\Http\Dispatcher->dispatch()
10. /var/www/nextcloud/lib/private/Route/Router.php line 298
    OC\AppFramework\App::main()
11. /var/www/nextcloud/lib/base.php line 1047
    OC\Route\Router->match()
12. /var/www/nextcloud/index.php line 36
    OC::handleRequest()

POST /apps/documentserver_community/ConvertService.ashx
from 127.0.0.1 at 2022-11-14T11:34:26+00:00

[onlyoffice] Error: GuzzleHttp\Exception\ServerException: Server error: `POST https://nextcloud.tld/apps/documentserver_community/ConvertService.ashx` resulted in a `500 Internal Server Error` response:
<!DOCTYPE html>
<html class="ng-csp" data-placeholder-focus="false" lang="en" data-locale="en" >
	<head
 data-requesttok (truncated...)
 at <<closure>>

 0. /var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Middleware.php line 69
    GuzzleHttp\Exception\RequestException::create()
 1. /var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php line 204
    GuzzleHttp\Middleware::GuzzleHttp\{closure}("*** sensitive parameters replaced ***")
 2. /var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php line 153
    GuzzleHttp\Promise\Promise::callHandler()
 3. /var/www/nextcloud/3rdparty/guzzlehttp/promises/src/TaskQueue.php line 48
    GuzzleHttp\Promise\Promise::GuzzleHttp\Promise\{closure}("*** sensitive parameters replaced ***")
 4. /var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php line 248
    GuzzleHttp\Promise\TaskQueue->run()
 5. /var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php line 224
    GuzzleHttp\Promise\Promise->invokeWaitFn()
 6. /var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php line 269
    GuzzleHttp\Promise\Promise->waitIfPending()
 7. /var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php line 226
    GuzzleHttp\Promise\Promise->invokeWaitList()
 8. /var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php line 62
    GuzzleHttp\Promise\Promise->waitIfPending()
 9. /var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Client.php line 187
    GuzzleHttp\Promise\Promise->wait()
10. /var/www/nextcloud/lib/private/Http/Client/Client.php line 289
    GuzzleHttp\Client->request()
11. /var/www/nextcloud/apps/onlyoffice/lib/documentservice.php line 372
    OC\Http\Client\Client->post()
12. /var/www/nextcloud/apps/onlyoffice/lib/documentservice.php line 177
    OCA\Onlyoffice\DocumentService->Request()
13. /var/www/nextcloud/apps/onlyoffice/lib/documentservice.php line 91
    OCA\Onlyoffice\DocumentService->SendRequestToConvertService()
14. /var/www/nextcloud/apps/onlyoffice/lib/preview.php line 269
    OCA\Onlyoffice\DocumentService->GetConvertedUri()
15. /var/www/nextcloud/lib/private/Preview/ProviderV1Adapter.php line 53
    OCA\Onlyoffice\Preview->getThumbnail()
16. /var/www/nextcloud/lib/private/Preview/GeneratorHelper.php line 65
    OC\Preview\ProviderV1Adapter->getThumbnail()
17. /var/www/nextcloud/lib/private/Preview/Generator.php line 343
    OC\Preview\GeneratorHelper->getThumbnail()
18. /var/www/nextcloud/lib/private/Preview/Generator.php line 162
    OC\Preview\Generator->getMaxPreview()
19. /var/www/nextcloud/lib/private/PreviewManager.php line 200
    OC\Preview\Generator->generatePreviews()
20. /var/www/nextcloud/apps/previewgenerator/lib/Command/Generate.php line 234
    OC\PreviewManager->generatePreviews()
21. /var/www/nextcloud/apps/previewgenerator/lib/Command/Generate.php line 216
    OCA\PreviewGenerator\Command\Generate->parseFile()
22. /var/www/nextcloud/apps/previewgenerator/lib/Command/Generate.php line 214
    OCA\PreviewGenerator\Command\Generate->parseFolder()
23. /var/www/nextcloud/apps/previewgenerator/lib/Command/Generate.php line 214
    OCA\PreviewGenerator\Command\Generate->parseFolder()
24. /var/www/nextcloud/apps/previewgenerator/lib/Command/Generate.php line 194
    OCA\PreviewGenerator\Command\Generate->parseFolder()
25. /var/www/nextcloud/apps/previewgenerator/lib/Command/Generate.php line 146
    OCA\PreviewGenerator\Command\Generate->generateUserPreviews()
26. /var/www/nextcloud/3rdparty/symfony/console/Command/Command.php line 255
    OCA\PreviewGenerator\Command\Generate->execute()
27. /var/www/nextcloud/3rdparty/symfony/console/Application.php line 1009
    Symfony\Component\Console\Command\Command->run()
28. /var/www/nextcloud/3rdparty/symfony/console/Application.php line 273
    Symfony\Component\Console\Application->doRunCommand()
29. /var/www/nextcloud/3rdparty/symfony/console/Application.php line 149
    Symfony\Component\Console\Application->doRun()
30. /var/www/nextcloud/lib/private/Console/Application.php line 213
    Symfony\Component\Console\Application->run()
31. /var/www/nextcloud/console.php line 100
    OC\Console\Application->run()
32. /var/www/nextcloud/occ line 11
    require_once("/var/www/nextcloud/console.php")

at 2022-11-14T11:34:24+00:00

Hello. I had an exception when executed the command: sudo -u www-data php /var/www/nextcloud/occ preview:generate-all -vvv Could you please advice me where the problem could be? NextCloud itself works normally, no strange errors in the logs were found.

Doctrine\DBAL\Exception: Failed to connect to the database: An exception occurred in the driver: could not find driver in /var/www/nextcloud/lib/private/DB/Connection.php:139 Stack trace: #0 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Connection.php(1519): OC\DB\Connection->connect() #1 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Connection.php(1041): Doctrine\DBAL\Connection->getWrappedConnection() #2 /var/www/nextcloud/lib/private/DB/Connection.php(261): Doctrine\DBAL\Connection->executeQuery() #3 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Query/QueryBuilder.php(345): OC\DB\Connection->executeQuery() #4 /var/www/nextcloud/lib/private/DB/QueryBuilder/QueryBuilder.php(281): Doctrine\DBAL\Query\QueryBuilder->execute() #5 /var/www/nextcloud/lib/private/AppConfig.php(411): OC\DB\QueryBuilder\QueryBuilder->execute() #6 /var/www/nextcloud/lib/private/AppConfig.php(176): OC\AppConfig->loadConfigValues() #7 /var/www/nextcloud/lib/private/AppConfig.php(367): OC\AppConfig->getApps() #8 /var/www/nextcloud/lib/private/legacy/OC_App.php(983): OC\AppConfig->getValues() #9 /var/www/nextcloud/lib/private/Server.php(713): OC_App::getAppVersions() #10 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(162): OC\Server->OC{closure}() #11 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility{closure}() #12 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(129): Pimple\Container->offsetGet() #13 /var/www/nextcloud/lib/private/ServerContainer.php(136): OC\AppFramework\Utility\SimpleContainer->query() #14 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(57): OC\ServerContainer->query() #15 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(184): OC\AppFramework\Utility\SimpleContainer->get() #16 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(162): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility{closure}() #17 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(118): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility{closure}() #18 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(129): Pimple\Container->offsetGet() #19 /var/www/nextcloud/lib/private/ServerContainer.php(136): OC\AppFramework\Utility\SimpleContainer->query() #20 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(57): OC\ServerContainer->query() #21 /var/www/nextcloud/lib/private/Server.php(1105): OC\AppFramework\Utility\SimpleContainer->get() #22 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(162): OC\Server->OC{closure}() #23 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility{closure}() #24 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(129): Pimple\Container->offsetGet() #25 /var/www/nextcloud/lib/private/ServerContainer.php(136): OC\AppFramework\Utility\SimpleContainer->query() #26 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(57): OC\ServerContainer->query() #27 /var/www/nextcloud/lib/private/Server.php(2082): OC\AppFramework\Utility\SimpleContainer->get() #28 /var/www/nextcloud/lib/private/Files/View.php(122): OC\Server->getLockingProvider() #29 /var/www/nextcloud/lib/private/Server.php(454): OC\Files\View->__construct() #30 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(162): OC\Server->OC{closure}() #31 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility{closure}() #32 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(129): Pimple\Container->offsetGet() #33 /var/www/nextcloud/lib/private/ServerContainer.php(136): OC\AppFramework\Utility\SimpleContainer->query() #34 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(57): OC\ServerContainer->query() #35 /var/www/nextcloud/lib/private/Server.php(1445): OC\AppFramework\Utility\SimpleContainer->get() #36 /var/www/nextcloud/lib/base.php(602): OC\Server->boot() #37 /var/www/nextcloud/lib/base.php(1104): OC::init() #38 /var/www/nextcloud/console.php(48): require_once('...') #39 /var/www/nextcloud/occ(11): require_once('...')