When solving Drupal 10 compatibility, one thing was overlooked:
- $dir = drupal_get_path('module', 'lightning_scheduler');
+ $dir = \Drupal::service('extension.list.module')->getPath('lightning_scheduler');
This service appeared first only in Drupal 9.3 → and early versions throw error now.
Fix this regression with checking the current core version and calling the proper function to eliminate this error. We do not need to raise the minimal core version requirement just because this one line.
Closed: works as designed
1.0
Code
This service was added back in core 8.6.x, see #2208429: Extension System, Part III: ExtensionList, ModuleExtensionList and ProfileExtensionList → , so no regression here.