Adding link to menu leads to Class "Drupal\link\Plugin\Field\FieldWidget\ObjectClass" not found in Drupal\link\Plugin\Field\FieldWidget\LinkWidget::getUserEnteredStringAsUri()

This looks like a bug report rather than a task. But I cannot reproduce this bug as written.

Small issue with the previous patch with regards to the URI verification is applied in this version.

The first code change in the patch was added in 📌 Replace substr($a, 0, $i) with str_starts_with() Fixed . For the second one, the code was changed, but not the same as the patch, in 🐛 Link-widget throws exception when rebuilding a form with an invalid uri Fixed . It looks like this was fixed by the later one. Therefor I am closing this as a duplicate.