minor stuff

lib/backend/modules/announcement.dart

@@ -293,10 +293,14 @@ class AnnouncementModule extends InfoModule {
     print("Checkpoint 5");
     await announcementCache.loadAnnouncementsFromBytes(await getBundleBytes(), [audioRoute]);
     print("Checkpoint 6");
-    AudioWrapperSource sourceRoute = !routeNumber.toLowerCase().startsWith("ul") ?
+    late AudioWrapperSource sourceRoute;
+    try {
+      sourceRoute = !routeNumber.toLowerCase().startsWith("ul") ?
       AudioWrapperByteSource(announcementCache[audioRoute]!) :
-      // AudioWrapperByteSource(announcementCache["R_RAIL_REPLACEMENT_SERVICE_001.mp3"]!);
       AudioWrapperAssetSource("audio/R_RAIL_REPLACEMENT_SERVICE_001.mp3");
+    } catch (e) {
+      sourceRoute = AudioWrapperAssetSource("audio/R_SPECIAL_SERVICE_001.mp3");
+    }
 
     if (routeNumber.toLowerCase().startsWith("ul")) {
 

pubspec.yaml

@@ -93,6 +93,7 @@ flutter:
     - assets/audio/R_RAIL_REPLACEMENT_SERVICE_001.mp3
     - assets/datasets/tube_stations.json
     - assets/audio/rail_replacement/
+    - assets/audio/R_SPECIAL_SERVICE_001.mp3
 
   #   - images/a_dot_burr.jpeg
   #   - images/a_dot_ham.jpeg