Unable to compile project after upgrading to 3.7.5

[Martin]

Hello - after upgrading to Flutter 3.7.5, I'm unable to compile a Flutter Web Project.

The errors are:../../.pub-cache/hosted/pub.dev/syncfusion_flutter_xlsio-20.4.51-beta/lib/src/xlsio/general/serialize_workbook.dart:419:54: Error: The argument type 'String?' can't be assigned to the parameter type 'Object' because 'String?' is nullable and 'Object' isn't.

 - 'Object' is from 'dart:core'.

            builder.attribute('algorithmName', sheet._algorithmName);

                                                     ^

../../.pub-cache/hosted/pub.dev/syncfusion_flutter_xlsio-20.4.51-beta/lib/src/xlsio/worksheet/worksheet.dart:1786:11: Context: '_algorithmName' refers to a property so it couldn't be promoted.

See http://dart.dev/go/non-promo-property

  String? _algorithmName;

          ^

../../.pub-cache/hosted/pub.dev/syncfusion_flutter_xlsio-20.4.51-beta/lib/src/xlsio/general/serialize_workbook.dart:902:51: Error: The argument type 'String?' can't be assigned to the parameter type 'Object' because 'String?' is nullable and 'Object' isn't.

 - 'Object' is from 'dart:core'.

                builder.attribute('tooltip', link.screenTip);

                                                  ^

../../.pub-cache/hosted/pub.dev/syncfusion_flutter_xlsio-20.4.51-beta/lib/src/xlsio/hyperlinks/hyperlink.dart:63:11: Context: 'screenTip' refers to a property so it couldn't be promoted.

See http://dart.dev/go/non-promo-property

  String? screenTip;

          ^

../../.pub-cache/hosted/pub.dev/syncfusion_flutter_xlsio-20.4.51-beta/lib/src/xlsio/general/serialize_workbook.dart:905:51: Error: The argument type 'String?' can't be assigned to the parameter type 'Object' because 'String?' is nullable and 'Object' isn't.

 - 'Object' is from 'dart:core'.

                builder.attribute('display', link.textToDisplay);

                                                  ^

../../.pub-cache/hosted/pub.dev/syncfusion_flutter_xlsio-20.4.51-beta/lib/src/xlsio/hyperlinks/hyperlink.dart:85:11: Context: 'textToDisplay' refers to a property so it couldn't be promoted.

See http://dart.dev/go/non-promo-property

  String? textToDisplay;

          ^

../../.pub-cache/hosted/pub.dev/syncfusion_flutter_xlsio-20.4.51-beta/lib/src/xlsio/general/serialize_workbook.dart:991:59: Error: The argument type 'String?' can't be assigned to the parameter type 'Object' because 'String?' is nullable and 'Object' isn't.

 - 'Object' is from 'dart:core'.

                            'tooltip', picture.hyperlink!.screenTip);

                                                          ^

../../.pub-cache/hosted/pub.dev/syncfusion_flutter_xlsio-20.4.51-beta/lib/src/xlsio/general/serialize_workbook.dart:1666:62: Error: The argument type 'String?' can't be assigned to the parameter type 'Object' because 'String?' is nullable and 'Object' isn't.

 - 'Object' is from 'dart:core'.

                'ContentType', _workbook._defaultContentTypes[key]);

                                                             ^

../../.pub-cache/hosted/pub.dev/syncfusion_flutter_xlsio-20.4.51-beta/lib/src/xlsio/general/serialize_workbook.dart:2636:45: Error: The argument type 'String?' can't be assigned to the parameter type 'Object' because 'String?' is nullable and 'Object' isn't.

 - 'Object' is from 'dart:core'.

        builder.attribute('text', condition.text);

                                            ^

../../.pub-cache/hosted/pub.dev/syncfusion_flutter_xlsio-20.4.51-beta/lib/src/xlsio/general/serialize_workbook.dart:3323:57: Error: The argument type 'String?' can't be assigned to the parameter type 'Object' because 'String?' is nullable and 'Object' isn't.

 - 'Object' is from 'dart:core'.

                    builder.attribute('id', dataBarImpl._stGUID);

                                                        ^

My pubspec.yaml file for dependencies is as follows:

# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^1.0.2
firebase_core: ^2.7.0
firebase_auth: ^4.2.9
cloud_firestore: ^4.4.3
syncfusion_flutter_calendar: ^20.4.51
provider: ^6.0.3
syncfusion_flutter_datagrid: ^20.4.51
syncfusion_flutter_datagrid_export: ^20.4.51-beta
syncfusion_flutter_core: ^20.4.51
syncfusion_flutter_pdf: ^20.4.51
html: ^0.15.1
intl: ^0.17.0
url_launcher: ^6.1.7
fancy_password_field: ^2.0.0
universal_html: ^2.0.8

Flutter doctor is as follows:

[✓] Flutter (Channel stable, 3.7.5, on macOS 13.1 22C65 darwin-arm64, locale en-US)

    • Flutter version 3.7.5 on channel stable at /Users/martinp/Development/flutter

    • Upstream repository https://github.com/flutter/flutter.git

    • Framework revision c07f788888 (5 hours ago), 2023-02-22 17:52:33 -0600

    • Engine revision 0f359063c4

    • Dart version 2.19.2

    • DevTools version 2.20.1

[✓] Android toolchain - develop for Android devices (Android SDK version 31.0.0)

    • Android SDK at /Users/martinp/Library/Android/sdk

    • Platform android-31, build-tools 31.0.0

    • Java binary at: /Applications/Android Studio.app/Contents/jre/Contents/Home/bin/java

    • Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)

    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 14.2)

    • Xcode at /Applications/Xcode.app/Contents/Developer

    • Build 14C18

    • CocoaPods version 1.11.3

[✓] Chrome - develop for the web

    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2022.1)

    • Android Studio at /Applications/Android Studio.app/Contents

    • Flutter plugin can be installed from:

      🔨 https://plugins.jetbrains.com/plugin/9212-flutter

    • Dart plugin can be installed from:

      🔨 https://plugins.jetbrains.com/plugin/6351-dart

    • Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)

[✓] Connected device (2 available)

    • macOS (desktop) • macos • darwin-arm64 • macOS 13.1 22C65 darwin-arm64

    • Chrome (web) • chrome • web-javascript • Google Chrome 110.0.5481.100

[✓] HTTP Host Availability

    • All required HTTP hosts are available

• No issues found!

Any help is much appreciated!

Thank you!

Martin

[Konduru Keerthi Konduru Ravichandra Raju]

Martin, we will resolve this issue and include the fix in our next weekly NuGet release scheduled for February 28^th,2023.

[Konduru Keerthi Konduru Ravichandra Raju]

Martin, we have resolved the issue in our latest version 20.4.52. Kindly upgrade to this latest version and let us know if this helps.

Latest Package: https://pub.dev/packages/syncfusion_flutter_xlsio/versions/20.4.52-beta 

[Martin]

Thanks - so far the update seems to be working!

[Konduru Keerthi Konduru Ravichandra Raju]

We are glad that the latest package did resolve your issue, Martin.