php - Looks like you try to load a template outside configured directories (../includeFiles/header.html.twig) Symfony - Stack Overflow
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![Add a new clean_unique_id Twig filter for Html::getUniqueId [#3115445] | Drupal.org](https://www.drupal.org/files/issues/2021-05-14/clean_unique_id.png "Add a new clean_unique_id Twig filter for Html::getUniqueId [#3115445] | Drupal.org")
Add a new clean_unique_id Twig filter for Html::getUniqueId [#3115445] | Drupal.org
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Node template | Mastering Drupal 8
Missing template after relocation base · Issue #3699 · twigphp/Twig · GitHub
list.html.twig {% block body %}
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