MediaDC fails to install

[GewoonYorick]

Describe the bug
MediaDC fails to install and throws the error down below.

To Reproduce
Steps to reproduce the behavior:

1. Run the install command / install through the store. (occ app:install mediadc)
2. Get an error:

Illegal instruction (core dumped)
An unhandled exception has been thrown:
TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /var/www/html/custom_apps/mediadc/lib/Service/PythonService.php:357
Stack trace:
#0 /var/www/html/custom_apps/mediadc/lib/Service/PythonService.php(357): count(NULL)
#1 /var/www/html/custom_apps/mediadc/lib/Service/PythonService.php(153): OCA\MediaDC\Service\PythonService->parsePythonOutput(Array)
#2 /var/www/html/custom_apps/mediadc/lib/Migration/AppUpdateStep.php(72): OCA\MediaDC\Service\PythonService->installDependencies('required option...')
#3 /var/www/html/lib/private/Repair.php(123): OCA\MediaDC\Migration\AppUpdateStep->run(Object(OC\Repair))
#4 /var/www/html/lib/private/legacy/OC_App.php(1059): OC\Repair->run()
#5 /var/www/html/lib/private/Installer.php(149): OC_App::executeRepairSteps('mediadc', Array)
#6 /var/www/html/core/Command/App/Install.php(75): OC\Installer->installApp('mediadc', false)
#7 /var/www/html/3rdparty/symfony/console/Command/Command.php(255): OC\Core\Command\App\Install->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#8 /var/www/html/3rdparty/symfony/console/Application.php(1009): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#9 /var/www/html/3rdparty/symfony/console/Application.php(273): Symfony\Component\Console\Application->doRunCommand(Object(OC\Core\Command\App\Install), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#10 /var/www/html/3rdparty/symfony/console/Application.php(149): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#11 /var/www/html/lib/private/Console/Application.php(209): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#12 /var/www/html/console.php(99): OC\Console\Application->run()
#13 /var/www/html/occ(11): require_once('/var/www/html/c...')
#14 {main}

Expected behavior
I expect the app to install without problems.

Server:

• Docker: nextcloud:22.2.0
• CPU x64
• Nextcloud version: 22.2.0

[bigcat88]

@GewoonYorick Please specify your php version.
If php8 then it might be fixed in next update...

[GewoonYorick]

That docker nextcloud image uses PHP8 :)

[bigcat88]

@GewoonYorick
Can you remove hexhamming module? Look in wiki how to do so, we will release update of our app soon(in a few days) for fixes with php8. For hexhamming there will be update released soon too(i guess).
If you have any questions or it will not help, just write here or to telegram chat.

[GewoonYorick]

I've removed hexhamming, issue still persist. (Same error)

[bigcat88]

@GewoonYorick you check 0.1.8 version and say if something was changed.

[GewoonYorick]

The error log has changed a bit:

occ app:install mediadc
An unhandled exception has been thrown:
TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /var/www/html/custom_apps/mediadc/lib/Migration/AppUpdateStep.php:69
Stack trace:
#0 /var/www/html/custom_apps/mediadc/lib/Migration/AppUpdateStep.php(69): count(NULL)
#1 /var/www/html/lib/private/Repair.php(123): OCA\MediaDC\Migration\AppUpdateStep->run(Object(OC\Repair))
#2 /var/www/html/lib/private/legacy/OC_App.php(1070): OC\Repair->run()
#3 /var/www/html/lib/private/Installer.php(148): OC_App::executeRepairSteps('mediadc', Array)
#4 /var/www/html/core/Command/App/Install.php(75): OC\Installer->installApp('mediadc', false)
#5 /var/www/html/3rdparty/symfony/console/Command/Command.php(255): OC\Core\Command\App\Install->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#6 /var/www/html/3rdparty/symfony/console/Application.php(1009): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#7 /var/www/html/3rdparty/symfony/console/Application.php(273): Symfony\Component\Console\Application->doRunCommand(Object(OC\Core\Command\App\Install), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#8 /var/www/html/3rdparty/symfony/console/Application.php(149): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#9 /var/www/html/lib/private/Console/Application.php(209): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#10 /var/www/html/console.php(99): OC\Console\Application->run()
#11 /var/www/html/occ(11): require_once('/var/www/html/c...')

[bigcat88]

@GewoonYorick Can you disable+remove MediaDC, then drop all MediaDC tables and it's record from migrations tables and repeat install?
MediaDC tables: oc_mediadc_photos , oc_mediadc_settings , oc_mediadc_tasks , oc_mediadc_tasks_details , oc_mediadc_videos
DROP TABLE oc_mediadc_photos, oc_mediadc_settings, oc_mediadc_tasks, oc_mediadc_tasks_details, oc_mediadc_videos;
Migration record are in table oc_migrations, where app = mediadc if you with to delete it by hands, or here is a request:
DELETE FROM oc_migrations WHERE app='mediadc';

If you have non standart table prefix, replace oc_ with yours.

[GewoonYorick]

I've removed mediadc, confirmed it was removed.
Dropped the tables above, and confirmed that they were dropped.
Removed the migration record for mediadc, and confirmed that it was removed.

After that I ran the install command again:

php occ app:install mediadc
mediadc 0.1.8 installed
An unhandled exception has been thrown:
TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /var/www/html/custom_apps/mediadc/lib/Migration/AppUpdateStep.php:69
Stack trace:
#0 /var/www/html/custom_apps/mediadc/lib/Migration/AppUpdateStep.php(69): count(NULL)
#1 /var/www/html/lib/private/Repair.php(123): OCA\MediaDC\Migration\AppUpdateStep->run(Object(OC\Repair))
#2 /var/www/html/lib/private/legacy/OC_App.php(1070): OC\Repair->run()
#3 /var/www/html/lib/private/Installer.php(148): OC_App::executeRepairSteps('mediadc', Array)
#4 /var/www/html/lib/private/legacy/OC_App.php(439): OC\Installer->installApp('mediadc')
#5 /var/www/html/core/Command/App/Install.php(91): OC_App->enable('mediadc')
#6 /var/www/html/3rdparty/symfony/console/Command/Command.php(255): OC\Core\Command\App\Install->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#7 /var/www/html/3rdparty/symfony/console/Application.php(1009): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#8 /var/www/html/3rdparty/symfony/console/Application.php(273): Symfony\Component\Console\Application->doRunCommand(Object(OC\Core\Command\App\Install), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#9 /var/www/html/3rdparty/symfony/console/Application.php(149): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#10 /var/www/html/lib/private/Console/Application.php(209): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#11 /var/www/html/console.php(99): OC\Console\Application->run()
#12 /var/www/html/occ(11): require_once('/var/www/html/c...')
#13 {main}

[andrey18106]

Did you tried install MediaDC via GUI? Seems like that's my flaw, there should additional not-null-check.