Unexpected error with print engine PhpWkhtmlToPdf or DomPdf: Session has not been set

On Drupal 10.1 and entity_print 2.13 i have the same error during configuration import.

This patch solve the issue and i can now import my configuration without problem.

Same here. Drupal 10.1 and entity_print 2.13. Patch #2 fixed it for me! Thenks!

Hello,

Same error here with Drupal 10.1.6 and Entity Print 2.13, but with the print engine DomPDF. And during a cron job launched via drush to generate PDFs (which don't have a session).

/** @var \Drupal\Core\StreamWrapper\StreamWrapperManagerInterface $stream_wrapper */
$stream_wrapper = \Drupal::service('stream_wrapper_manager');
$print_engine = \Drupal::service('plugin.manager.entity_print.print_engine')->createSelectedInstance('pdf');
$print_builder = \Drupal::service('entity_print.print_builder');
$billfile_uri = $print_builder->savePrintable($orders, $print_engine, 'private', $stream_wrapper->getTarget($file_destination . $bill_filename));

The stack trace

Trace :
#0 /var/www/xxx/web/modules/contrib/entity_print/src/Plugin/EntityPrint/PrintEngine/DomPdf.php(285): Symfony\Component\HttpFoundation\Request->getSession() 
#1 /var/www/xxx/web/modules/contrib/entity_print/src/Plugin/EntityPrint/PrintEngine/DomPdf.php(238): Drupal\entity_print\Plugin\EntityPrint\PrintEngine\DomPdf->setupHttpContext() 
#2 /var/www/xxx/web/modules/contrib/entity_print/src/Plugin/EntityPrint/PrintEngine/DomPdf.php(228): Drupal\entity_print\Plugin\EntityPrint\PrintEngine\DomPdf->doRender() 
#3 /var/www/xxxx/web/modules/contrib/entity_print/src/PrintBuilder.php(100): Drupal\entity_print\Plugin\EntityPrint\PrintEngine\DomPdf->getBlob() 
#4 /var/www/xxx/web/modules/custom/xxx_commerce/src/SalesJournalGenerator.php(372): Drupal\entity_print\PrintBuilder->savePrintable() 
#5 /var/www/xxx/web/modules/custom/xxx_commerce/xxx_commerce.module(793): Drupal\xxx_commerce\SalesJournalGenerator->generateSalesJournal() 
#6 /var/www/xxx/web/core/lib/Drupal/Core/Cron.php(335): xxx_commerce_cron() 

attached a patch with same fix for DomPdf print engine

retitling

#2 worked for me, thank you! Drupal 10.1.7, entity_print 8.x-2.13

Thank you for patch #5 it works!

#5 worked, It solves the related commerce ticketing send of mail issues

#2 solved the issue only for PhpWkhtmlToPdf
where #5 solved it for both PhpWkhtmlToPdf and DomPdf

#5 should be used in preference of #2

With so many people using the patch, i will set the ticket to reviewed.

Tomefa → changed the visibility of the branch 3383187-unexpected-error-with to hidden.

Tomefa → changed the visibility of the branch 3383187-unexpected-error-with to active.

we are using #5, applies cleanly to 2.12.0 and is IMHO a simple enough patch, moving to RTBC

PDF was missing from commerce invoice confirmation mail attachments, after applying #5 the error, "Symfony\Component\HttpFoundation\Exception\SessionNotFoundException: Session has not been set.", is no longer appearing and PDF is attached in mail.

By the way this was happening while cron context.