When using this module in Drupal 11.1, I get the following error:
TypeError: Drupal\lang_dropdown\Plugin\Block\LanguageDropdownBlock::__construct(): Argument #7 ($library_discovery) must be of type Drupal\Core\Asset\LibraryDiscovery, Drupal\Core\Asset\LibraryDiscoveryCollector given, called in /var/www/html/web/modules/contrib/lang_dropdown/src/Plugin/Block/LanguageDropdownBlock.php on line 113 in Drupal\lang_dropdown\Plugin\Block\LanguageDropdownBlock->__construct() (line 99 of modules/contrib/lang_dropdown/src/Plugin/Block/LanguageDropdownBlock.php).
As described in https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21Asset%21L..., we should use \Drupal\Core\Asset\LibraryDiscoveryCollector instead of \Drupal\Core\Asset\LibraryDiscovery
Active
2.0
Code
That issue is fixing in 📌 Automated Drupal 11 compatibility fixes for lang_dropdown Needs review