When I want to include a single directory component with a fallback for missing components, I use an array with multiple possibilities and the ignore_missing keyword.
This still logs an error Drupal\Core\Render\Component\Exception\ComponentNotFoundException: Unable to find component, while I would expect the ignore_missing keyword would silence this exception.
In the example below, in media.html.twig, I want to load a single directory component theme_name:media-{media_bundle}, with a fallback on theme_name:media if the former doesn't exist.
{{ include([
'theme_name:media-' ~ media.bundle()|clean_class,
'theme_name:media',
],{
content: content,
media: media,
component_attributes: attributes,
component_id: media.id(),
view_mode: view_mode,
logged_in: logged_in,
},
with_context = false,
ignore_missing = true
)}}
For media of bundle image, it looks for both theme:media-image and theme_name:media. In this case the component theme_name:media-image doesn't exist, but I have an existing component theme_name:media. In my logs I got a Drupal\Core\Render\Component\Exception\ComponentNotFoundException: Unable to find component "theme_name:media-image" in the component repository.
Active
11.2 🔥
base system
If this problem was discovered on a version of Drupal that is not 11.x, add that information in the issue summary and leave the version at 11.x. In Drupal core changes are made on on 11.x (our main development branch) first, and are then back ported as needed according to the Core change policies → . Also mentioned on the version → section of the list of issue fields documentation.