The specified library "bootstrap_barrio/dropbutton" does not exist." at /[...]/web/core/lib/Drupal/Core/Asset/LibraryDiscoveryCollector.php

Updating Drupal (from 8.6.15 to 8.7.1) and Boostrap_barrio (from 8.x-4.21 to 8.x-4.22) site through the following error:

"PHP message: Uncaught PHP Exception Drupal\Core\Asset\Exception\InvalidLibrariesExtendSpecificationException: "The specified library "bootstrap_barrio/dropbutton" does not exist." at /[...]/web/core/lib/Drupal/Core/Asset/LibraryDiscoveryCol

The current theme activated is a boostrap_barrio subtheme and I thought that this issue could be related with this:
https://www.drupal.org/project/bootstrap_barrio/issues/3035369 →

so I check the diferences between the new 4.22 version subtheme folder and my subtheme using https://git.drupalcode.org/project/bootstrap_barrio/compare/8.x-4.21...8... and finally I have added the new lines in config/schema/bootstrap_barrio.schema.yml but It didn't work.