syncfusion_flutter_gauges-20.1.52 - Compile error with Flutter 3.0.0

[michael-woolsey]

Hello everyone,

I'm getting the following error Error: A value of type 'Widget' can't be assigned to a variable of type 'InheritedWidget'. once I upgraded to Flutter 3.0.0 today:

Cache/hosted/pub.dartlang.org/syncfusion_flutter_gauges-20.1.52/lib/src/linear_gauge/gauge/linear_gauge_scope.dart:40:10: Error: A value of type 'Widget' can't be assigned to a variable of type 'InheritedWidget'.
- 'Widget' is from 'package:flutter/src/widgets/framework.dart' ('/flutter/packages/flutter/lib/src/widgets/framework.dart').
- 'InheritedWidget' is from 'package:flutter/src/widgets/framework.dart' ('/flutter/packages/flutter/lib/src/widgets/framework.dart').
        .widget;

Hopefully it's something that can get addressed soon!

Thank you,
Michael

[osmanGuler19]

Same here with 2.13.0-0.0.pre.166!

[michael-woolsey]

It appears that they have had a PR (#596) for this issue since Feb 21st and it still made it through to a production issue.

[osmanGuler19]

my flutter version isn't 3.0 but still I am getting the same error

[rienkkk]

Same problem here.

[lucavenir]

I just got exactly the same problem here. Guess my project will wait for Flutter 3 until then 😔
This is a bummer, as Dart 2.17 would really boost my productivity up.

[Hassanch15]

Same problem here.

[michael-woolsey]

Sadly, today's release of 20.1.55 DID NOT solve this problem.

[Yuvaraj-Gajaraj]

Hi @michael-woolsey,

The reported issue is reproduced at our end, because of the new Flutter version release. We will fix this and roll it out in our upcoming weekly patch release, we will update you once the patch got rolled out. We appreciate your patience until then.

Regards,
Yuvaraj.

[michael-woolsey]

Hello @Yuvaraj-Gajaraj,

If you're telling me that I have another week to find a solution to this problem, my solution may very well be to find another product.

[AlexVegner]

Temporary workaround:

# Hot fix for Flutter 3.0
  syncfusion_flutter_gauges:
    git:
      url: https://github.com/AlexVegner/flutter-widgets.git
      ref: flutter_3_0
      path: packages/syncfusion_flutter_gauges

[lucavenir]

Hello @Yuvaraj-Gajaraj,

If you're telling me that I have another week to find a solution to this problem, my solution may very well be to find another product.

Come on, it's open source software and 3.0 came out just yesterday (and it wasn't announced).

Let's wait one week and see if they can deliver, this fix shouldn't be much of a problem.

[michael-woolsey]

@lucavenir - Cause they didn't know about it coming since at least Feb 21st where someone else made a PR for them on a commercial product?

If you find that acceptable, all the power to you, many will agree with you.

[pbertsch]

I just hit the same issue, temporarily fixed the issue by editing the linear_gauge_scope.dart and changed the InheritedWidget to a Widget. It works because it is only used for a basic comparison. It should look like that afterwards.

It's only temporary in my case so I can go ahead with the development for now.

[acx70]

Same problem after upgrading to flutter 3.0

syncfusion_flutter_gauges 20.1.55

[acx70]

Temporary workaround:

# Hot fix for Flutter 3.0
  syncfusion_flutter_gauges:
    git:
      url: https://github.com/AlexVegner/flutter-widgets.git
      ref: flutter_3_0
      path: packages/syncfusion_flutter_gauges

It does not work if you have to publish the package