The setter 'imageFilter' isn't defined for the class 'Paint'.

I am using your regular example from github

this is my pubspec
--------------------------------------------------------------
smart_flare: ^0.2.8

This is my main
--------------------------------------------------------------------
import 'package:flutter/material.dart';
import 'package:smart_flare/smart_flare.dart';

void main() => runApp(FlareDemo());

class FlareDemo extends StatefulWidget {
@override
_FlareDemoState createState() => _FlareDemoState();
}

class _FlareDemoState extends State {
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.black,
body: SmartFlareActor(
width: 295.0,
height: 251.0,
filename: 'animations/rotating_star.flr'));
}
}

THIS IS THE ERROR MESSAGE I GET

Compiler message:
file:///C:/flutter/.pub-cache/hosted/pub.dartlang.org/flare_flutter-1.8.3/lib/flare.dart:1331:18: Error: The setter 'imageFilter' isn't defined for the class 'Paint'.
- 'Paint' is from 'dart:ui'.
Try correcting the name to the name of an existing setter, or defining a setter or field named 'imageFilter'.
layerPaint.imageFilter = _blurFilter(baseBlurX, baseBlurY);
^^^^^^^^^^^
file:///C:/flutter/.pub-cache/hosted/pub.dartlang.org/flare_flutter-1.8.3/lib/flare.dart:1347:13: Error: The setter 'imageFilter' isn't defined for the class 'Paint'.
- 'Paint' is from 'dart:ui'.
Try correcting the name to the name of an existing setter, or defining a setter or field named 'imageFilter'.
..imageFilter = _blurFilter(
^^^^^^^^^^^
file:///C:/flutter/.pub-cache/hosted/pub.dartlang.org/flare_flutter-1.8.3/lib/flare.dart:1391:13: Error: The setter 'imageFilter' isn't defined for the class 'Paint'.
- 'Paint' is from 'dart:ui'.
Try correcting the name to the name of an existing setter, or defining a setter or field named 'imageFilter'.
..imageFilter = _blurFilter(
^^^^^^^^^^^
Compiler failed on D:\FlutterDell\Test152-Flare2\BoringStarTest\boring_star_test\lib\main.dart

FAILURE: Build failed with an exception.

* Where:
Script 'C:\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 665

* What went wrong:
Execution failed for task ':app:compileflutterBuildDebugX86'.
> Process 'command 'C:\flutter\bin\flutter.bat'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 10s
Finished with error: Gradle task assembleDebug failed with exit code 1

I get the same thing from flutter_flare