diff --git a/lib/domain/entities/carton.dart b/lib/domain/entities/carton.dart
index b10c3e8..954c65c 100644
--- a/lib/domain/entities/carton.dart
+++ b/lib/domain/entities/carton.dart
@@ -133,7 +133,7 @@ class Carton {
 
   Map<String, dynamic> toMap() {
     List _cargoTypes = cargoTypes.map((c) => c.toMap()).toList();
-    List _packages = packages.map((c) => c.toJson()).toList();
+    List _packages = packages?.map((c) => c.toJson())?.toList();
     return {
       "id": id,
       'cargo_types': _cargoTypes,
diff --git a/lib/pages/widgets/multi_img_controller.dart b/lib/pages/widgets/multi_img_controller.dart
index ee75035..1e10c7e 100644
--- a/lib/pages/widgets/multi_img_controller.dart
+++ b/lib/pages/widgets/multi_img_controller.dart
@@ -4,7 +4,7 @@ import 'callbacks.dart';
 import 'display_image_source.dart';
 
 class MultiImgController {
-  List<String> imageUrls;
+  List<String> imageUrls = [];
   List<DisplayImageSource> addedFiles = [];
   List<DisplayImageSource> removedFiles = [];
 
diff --git a/lib/pages/widgets/multi_img_file.dart b/lib/pages/widgets/multi_img_file.dart
index c067090..fb85cd4 100644
--- a/lib/pages/widgets/multi_img_file.dart
+++ b/lib/pages/widgets/multi_img_file.dart
@@ -2,7 +2,6 @@ import 'dart:io';
 
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:fcs/helpers/theme.dart';
-import 'package:fcs/pages/widgets/bottom_up_page_route.dart';
 import 'package:fcs/pages/widgets/right_left_page_rout.dart';
 import 'package:fcs/pages/widgets/show_img.dart';
 import 'package:fcs/pages/widgets/show_multiple_img.dart';