TypeError: Drupal\Component\Utility\Html::escape(): Argument #1 ($text) must be of type string, null given, called in /app/web/core/lib/Drupal/Component/Render/FormattableMarkup.php on line 256 in Drupal\Component\Utility\Html::escape() (line 428 of core/lib/Drupal/Component/Utility/Html.php).
Html::escape(), ::decodeEntities(), and FormattableMarkup::placeholderEscape() no longer accept NULL
Change log: https://www.drupal.org/node/3318826 Introduced: 9.5.0
Error in Drupal 11
https://github.com/drupal-graphql/graphql/blob/8.x-4.x/src/Form/ServerForm.php#L103-L108
Problemo
Originating from
\Drupal\graphql\Form\ServerForm::form()
$this->operation
iscreate
, notadd
Which passes down a NULL to
$this->t()
's variable as$server->label()