Issue #3221004: Missing entities/profiles errors after installation of 5.0.0

backup_migrate.install

@@ -9,6 +9,24 @@ declare(strict_types=1);
 
 use Drupal\backup_migrate\Entity\Schedule;
 
+/**
+ * Install new backup and migrate entity types.
+ */
+function backup_migrate_update_9001() {
+  $new_entity_types = [
+    'backup_migrate_schedule',
+    'backup_migrate_destination',
+    'backup_migrate_settings',
+    'backup_migrate_source',
+  ];
+  $entity_definition_update_manager = \Drupal::entityDefinitionUpdateManager();
+  $type_manager = \Drupal::entityTypeManager();
+  foreach ($new_entity_types as $entity_type) {
+    $entity_type = $type_manager->getDefinition($entity_type);
+    $entity_definition_update_manager->installEntityType($entity_type);
+  }
+}
+
 /**
  * Migrate last_run information from raw KeyValue to State API.
  */