Update dependencies

- Implement null checks on decode method

Author: eightgran

example/pubspec.lock

@@ -35,7 +35,7 @@ packages:
       name: file_picker
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.0.2"
+    version: "4.3.0"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -73,7 +73,7 @@ packages:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0"
+    version: "1.7.0"
   path:
     dependency: transitive
     description:
@@ -87,14 +87,14 @@ packages:
       name: permission_handler
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "8.1.4+2"
+    version: "8.3.0"
   permission_handler_platform_interface:
     dependency: transitive
     description:
       name: permission_handler_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.6.1"
+    version: "3.7.0"
   plugin_platform_interface:
     dependency: transitive
     description:
@@ -122,5 +122,5 @@ packages:
     source: hosted
     version: "2.1.0"
 sdks:
-  dart: ">=2.12.0 <3.0.0"
-  flutter: ">=2.0.0"
+  dart: ">=2.14.0 <3.0.0"
+  flutter: ">=2.5.0"

lib/controller/backup_storage.dart

@@ -242,11 +242,16 @@ class BackupStorage {
     if (result != null) {
       PlatformFile pickedfile = result.files.first;
 
-      print("Picked file cached at: " + pickedfile.path);
+      if (pickedfile.path == null) {
+        print("Unable to locate file");
+        return null;
+      }
+
+      print("Picked file cached at: " + pickedfile.path!);
 
       try {
         // Point to the cached backup file location.
-        final file = await _createLocalFile(pickedfile.path);
+        final file = await _createLocalFile(pickedfile.path!);
         // Read the file
         final contents = await file.readAsString();
         print("Backup found on ${file.path}");

pubspec.yaml

@@ -13,8 +13,8 @@ dependencies:
   flutter:
     sdk: flutter
 
-  permission_handler: ^8.1.4+2
-  file_picker: ^4.0.2
+  permission_handler: ^8.3.0
+  file_picker: ^4.3.0
 
 dev_dependencies: