Make sure $callback is_callable. ( TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "FileSizeLimit" not found or invalid function name )

Here is the backtrace:

#0 /var/www/html/web/modules/contrib/filefield_sources/src/Plugin/FilefieldSource/Reference.php(48): filefield_sources_element_validate(Array, Object(Drupal\file\Entity\File), Object(Drupal\Core\Form\FormState))
#1 /var/www/html/web/modules/contrib/filefield_sources/filefield_sources.module(365): Drupal\filefield_sources\Plugin\FilefieldSource\Reference::value(Array, Array, Object(Drupal\Core\Form\FormState))
#2 /var/www/html/web/core/modules/file/src/Element/ManagedFile.php(91): filefield_sources_field_value(Array, Array, Object(Drupal\Core\Form\FormState))
#3 /var/www/html/web/core/modules/file/src/Plugin/Field/FieldWidget/FileWidget.php(337): Drupal\file\Element\ManagedFile::valueCallback(Array, Array, Object(Drupal\Core\Form\FormState))
#4 [internal function]: Drupal\file\Plugin\Field\FieldWidget\FileWidget::value(Array, Array, Object(Drupal\Core\Form\FormState))
#5 /var/www/html/web/core/lib/Drupal/Core/Form/FormBuilder.php(1266): call_user_func_array(Array, Array)
#6 /var/www/html/web/core/lib/Drupal/Core/Form/FormBuilder.php(1006): Drupal\Core\Form\FormBuilder->handleInputElement('node_tool_edit_...', Array, Object(Drupal\Core\Form\FormState))
#7 /var/www/html/web/core/lib/Drupal/Core/Form/FormBuilder.php(1076): Drupal\Core\Form\FormBuilder->doBuildForm('node_tool_edit_...', Array, Object(Drupal\Core\Form\FormState))
#8 /var/www/html/web/core/lib/Drupal/Core/Form/FormBuilder.php(1076): Drupal\Core\Form\FormBuilder->doBuildForm('node_tool_edit_...', Array, Object(Drupal\Core\Form\FormState))
#9 /var/www/html/web/core/lib/Drupal/Core/Form/FormBuilder.php(1076): Drupal\Core\Form\FormBuilder->doBuildForm('node_tool_edit_...', Array, Object(Drupal\Core\Form\FormState))
#10 /var/www/html/web/core/lib/Drupal/Core/Form/FormBuilder.php(579): Drupal\Core\Form\FormBuilder->doBuildForm('node_tool_edit_...', Array, Object(Drupal\Core\Form\FormState))
#11 /var/www/html/web/core/lib/Drupal/Core/Form/FormBuilder.php(325): Drupal\Core\Form\FormBuilder->processForm('node_tool_edit_...', Array, Object(Drupal\Core\Form\FormState))
#12 /var/www/html/web/core/lib/Drupal/Core/Controller/FormController.php(73): Drupal\Core\Form\FormBuilder->buildForm(Object(Drupal\node\NodeForm), Object(Drupal\Core\Form\FormState))
#13 /var/www/html/web/core/modules/layout_builder/src/Controller/LayoutBuilderHtmlEntityFormController.php(39): Drupal\Core\Controller\FormController->getContentResult(Object(Symfony\Component\HttpFoundation\Request), Object(Drupal\Core\Routing\RouteMatch))
#14 [internal function]: Drupal\layout_builder\Controller\LayoutBuilderHtmlEntityFormController->getContentResult(Object(Symfony\Component\HttpFoundation\Request), Object(Drupal\Core\Routing\RouteMatch))
#15 /var/www/html/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(123): call_user_func_array(Array, Array)
#16 /var/www/html/web/core/lib/Drupal/Core/Render/Renderer.php(627): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#17 /var/www/html/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(121): Drupal\Core\Render\Renderer->executeInRenderContext(Object(Drupal\Core\Render\RenderContext), Object(Closure))
#18 /var/www/html/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(97): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array)
#19 /var/www/html/vendor/symfony/http-kernel/HttpKernel.php(181): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#20 /var/www/html/vendor/symfony/http-kernel/HttpKernel.php(76): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1)
#21 /var/www/html/web/core/lib/Drupal/Core/StackMiddleware/Session.php(58): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#22 /var/www/html/web/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(48): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#23 /var/www/html/web/core/lib/Drupal/Core/StackMiddleware/ContentLength.php(28): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#24 /var/www/html/web/core/modules/big_pipe/src/StackMiddleware/ContentLength.php(32): Drupal\Core\StackMiddleware\ContentLength->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#25 /var/www/html/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(106): Drupal\big_pipe\StackMiddleware\ContentLength->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#26 /var/www/html/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(85): Drupal\page_cache\StackMiddleware\PageCache->pass(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#27 /var/www/html/web/core/modules/ban/src/BanMiddleware.php(50): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#28 /var/www/html/web/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(48): Drupal\ban\BanMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#29 /var/www/html/web/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(51): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#30 /var/www/html/web/core/lib/Drupal/Core/StackMiddleware/AjaxPageState.php(36): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#31 /var/www/html/web/core/lib/Drupal/Core/StackMiddleware/StackedHttpKernel.php(51): Drupal\Core\StackMiddleware\AjaxPageState->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#32 /var/www/html/web/core/lib/Drupal/Core/DrupalKernel.php(704): Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#33 /var/www/html/web/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request))
#34 {main}

Not sure if this is the right fix. Need a maintainer who knows the module to review.

Patch #3 works for me, thank you very much!

Attaching a patch that uses the Drupal file validator service and constraints. For more info on this see: https://www.drupal.org/node/3363700 →

I think the problem with the issue branch in this thread is that you won't get the validation errors, because those functions remain invalid callback functions in D10.

The attached patch successfully produced constraint errors like the attached image.

I tried to replicate this issue without luck.

Can you please provide a list of steps?

The patch looks I just want to test it before to commit it.

Thanks!

I only saw this on Drupal 10, not Drupal 9.

Steps were (from memory):
1. install drupal 10 and filefield sources
2. enable filefield sources
3. edit a content type and add a file field
4. configure the file field to use sources: reference autocomplete
5. edit a node of the relevant type, and try to reference a file.

This works great.

I have just some doubts about the use of the file.validator service, it seems that it was added in Drupal 10.2 which was released just one month ago.

I know that this is something that is not working anyway but the module's info file says:

core_version_requirement: ^9.2 || ^10

I wonder what is best if take advantage of this new service and just bump the core version requirement to ^10.2 or be more flexible and support at least older versions of Drupal 10?

I understand that this branch hasn't a single release yet, so we can do whatever we want 😆 but what is the best thing to do?

Thoughts?