Problem/Motivation
I have updated my site completely to the newest 9.3 version. In this I have a node with paragraphs as my theme homepage. And theme homepage gives WSOD with the following error on latest 9.3:
The website encountered an unexpected error. Please try again later.
TypeError: Argument 1 passed to Drupal\Core\File\FileUrlGenerator::generateString() must be of the type string, null given, called in httpdocs/web/sites/default/files/php/twig/61b7c1cc12197_paragraph--view_referance_kTM91Di4YhANCpjtiZ2FlHIET/OWkkQEG98F61u897Zzc3agnP4Cd1gZmHLd6BGlNRCH0.php on line 41 in Drupal\Core\File\FileUrlGenerator->generateString() (line 58 of core/lib/Drupal/Core/File/FileUrlGenerator.php).
After some research I removed all paragraphs from the node, and then the WSOD and error is gone.
Steps to reproduce
When I add one custom-html paragraph with just the word 'test' the WSOD and error is back again.
Proposed resolution
I tried adding this https://www.drupal.org/files/issues/2020-01-06/added_empty_check_on_uri-...
to to /lib/Drupal/Core/File/FileUrlGenerator.php but error still stays.
Proposed solution, take care that Argument 1 is not null.
Remaining tasks
User interface changes
API changes
Data model changes
Greetings and thanks in advance for looking into this,
Martijn
