future already completed

mobile/lib/models/backup/backup_state.model.dart

@@ -79,7 +79,7 @@ class BackUpState {
     DateTime? progressInFileSpeedUpdateTime,
     int? progressInFileSpeedUpdateSentBytes,
     double? iCloudDownloadProgress,
-    Completer? cancelToken,
+    Completer<void>? cancelToken,
     ServerDiskInfo? serverInfo,
     bool? autoBackup,
     bool? backgroundBackup,

mobile/lib/models/backup/manual_upload_state.model.dart

@@ -5,7 +5,7 @@ import 'package:collection/collection.dart';
 import 'package:immich_mobile/models/backup/current_upload_asset.model.dart';
 
 class ManualUploadState {
-  final Completer cancelToken;
+  final Completer<void> cancelToken;
 
   // Current Backup Asset
   final CurrentUploadAsset currentUploadAsset;
@@ -45,7 +45,7 @@ class ManualUploadState {
     List<double>? progressInFileSpeeds,
     DateTime? progressInFileSpeedUpdateTime,
     int? progressInFileSpeedUpdateSentBytes,
-    Completer? cancelToken,
+    Completer<void>? cancelToken,
     CurrentUploadAsset? currentUploadAsset,
     int? totalAssetsToUpload,
     int? successfulUploads,

mobile/lib/presentation/widgets/action_buttons/upload_action_button.widget.dart

@@ -102,6 +102,7 @@ class _UploadProgressDialog extends ConsumerWidget {
         ImmichTextButton(
           onPressed: () {
             ref.read(manualUploadCancelTokenProvider)?.complete();
+            ref.read(manualUploadCancelTokenProvider.notifier).state = null;
             Navigator.of(context).pop();
           },
           labelText: 'cancel'.t(context: context),

mobile/lib/providers/backup/asset_upload_progress.provider.dart

@@ -31,4 +31,4 @@ final assetUploadProgressProvider = NotifierProvider<AssetUploadProgressNotifier
   AssetUploadProgressNotifier.new,
 );
 
-final manualUploadCancelTokenProvider = StateProvider<Completer?>((ref) => null);
+final manualUploadCancelTokenProvider = StateProvider<Completer<void>?>((ref) => null);

mobile/lib/providers/backup/backup.provider.dart

@@ -497,6 +497,7 @@ class BackupNotifier extends StateNotifier<BackUpState> {
     state.cancelToken.complete();
     state = state.copyWith(
       backupProgress: BackUpProgressEnum.idle,
+      cancelToken: Completer<void>(),
       progressInPercentage: 0.0,
       progressInFileSize: "0 B / 0 B",
       progressInFileSpeed: 0,

mobile/lib/providers/backup/manual_upload.provider.dart

@@ -328,6 +328,7 @@ class ManualUploadNotifier extends StateNotifier<ManualUploadState> {
       _backupProvider.updateBackupProgress(BackUpProgressEnum.idle);
     }
     state = state.copyWith(
+      cancelToken: Completer<void>(),
       progressInPercentage: 0,
       progressInFileSize: "0 B / 0 B",
       progressInFileSpeed: 0,

mobile/lib/services/background.service.dart

@@ -320,6 +320,7 @@ class BackgroundService {
       case "systemStop":
         _canceledBySystem = true;
         _cancellationToken?.complete();
+        _cancellationToken = null;
         return true;
       default:
         dPrint(() => "Unknown method ${call.method}");