final

lib/widgets/mobile/mobile_index_main_content_1.dart

@@ -3,9 +3,9 @@ import 'package:flutter/material.dart';
 import 'package:flutter_wisetronic/generated/l10n.dart';
 
 class MobileIndexMainContent1 extends StatefulWidget {
-  final String message;
+  final String? message;
 
-  const MobileIndexMainContent1(this.message, {Key key}) : super(key: key);
+  const MobileIndexMainContent1(this.message, {Key? key}) : super(key: key);
 
   @override
   State<StatefulWidget> createState() {
@@ -22,7 +22,7 @@ class MobileIndexMainContent1State extends State<MobileIndexMainContent1> {
       padding: EdgeInsets.symmetric(vertical: 20.0, horizontal: 20.0),
       child: Container(
         child: Text(
-          widget.message,
+          widget.message ?? '',
           style: TextStyle(
             fontSize: 15.0,
             fontWeight: FontWeight.bold,