Flare-flutter: Latest Flutter master(Dart 2.3 ??) breaking flare

[rahulmanthena]

Hi

I am getting the following error on latest flutter master branch, my hunch is that this is related the dart 2.3 update. Working fine on Stable channel

Compiler message:
file:///Users/rahul/.pub-cache/hosted/pub.dartlang.org/flare_flutter-1.3.13/lib/flare.dart:981:18: Error: The argument type 'Int32List' can't be assigned to the parameter type 'Uint16List'.

• 'Int32List' is from 'dart:typed_data'.
• 'Uint16List' is from 'dart:typed_data'.
  Try changing the type of the parameter, or casting the argument to 'Uint16List'.
  indices: _indices, textureCoordinates: _uvBuffer);
  ^
  Compiler failed on /Users/rahul/Development/AndroidStudioProjects/scrim/lib/main.dart
  Finished with error: Gradle task assembleDevelopmentDebug failed with exit code 1

Flutter version:
Flutter 1.5.5-pre.19 • channel master • https://github.com/flutter/flutter.git
Framework • revision ac7f875778 (2 hours ago) • 2019-04-22 21:41:18 -0400
Engine • revision 0523870e0b
Tools • Dart 2.3.0 (build 2.3.0-dev.0.1 cf4444b803)

[Zazo032]

Locally changing line 914 to Uint16List _indices; and line 975 to Uint16List.fromList(triangles); temporarily solves the issue and allows you to run the app, even though it may not be the best solution (not familiar with Flare data).

[umberto-sonnino]

It looks like the latest Flutter master has changed the Vertices.raw() constructor type for the indices parameter, but Flutter stable still relies on the old signature.

In the meantime @Zazo032's temporary fix works, but we'll be updating everything asap!

[magic-coding]

Is this issue solved?
I try it with Flutter master and flare_flutter: ^1.5.0 but still getting errors:

Compiler message:
file:///Users/example/flutter/.pub-cache/hosted/pub.dartlang.org/flare_flutter-1.5.0/lib/flare.dart:1023:18: Error: The argument type 'Int32List' can't be
assigned to the parameter type 'Uint16List'.
 - 'Int32List' is from 'dart:typed_data'.
 - 'Uint16List' is from 'dart:typed_data'.
Try changing the type of the parameter, or casting the argument to 'Uint16List'.
        indices: _indices, textureCoordinates: _uvBuffer);
                 ^
Compiler failed on /Users/example/Desktop/coding/flutter-flare/flare/lib/main.dart
Error launching application on iPhone Xʀ.

Flutter Doctor - v:

[✓] Flutter (Channel master, v1.5.9-pre.86, on Mac OS X 10.14.4 18E226, locale en-US)
    • Flutter version 1.5.9-pre.86 at /Users/ex/flutter
    • Framework revision a8504405a8 (5 hours ago), 2019-04-30 23:27:30 -0700
    • Engine revision 2f11d3c4a2
    • Dart version 2.3.0 (build 2.3.0-dev.0.4 c46deebfb6)


[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
    • Android SDK at /Users/ex/Library/Android/sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-28, build-tools 28.0.3
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)
    • All Android licenses accepted.

[✓] iOS toolchain - develop for iOS devices (Xcode 10.2.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 10.2.1, Build version 10E1001
    • ios-deploy 1.9.4
    • CocoaPods version 1.6.1

[✓] Android Studio (version 3.2)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 31.3.1
    • Dart plugin version 181.5656
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)

[✓] VS Code (version 1.33.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 2.25.1

[✓] Connected device (1 available)
    • iPhone Xʀ • 6BA67AB4-AB37-4C1C-8EA3-D69EC44E4B6A • ios • com.apple.CoreSimulator.SimRuntime.iOS-12-2 (simulator)

! Doctor found issues in 1 category.

[umberto-sonnino]

We've been making a few updates to the runtime in order to have better support for these changes in the Flutter APIs.
Using this repo's stable branch together with Flutter Stable should work!

[luigi-rosso]

Now that these changes have landed in flutter dev, you can use either our master or dev channel if you are using non-stable version of flutter:

flare_flutter:
  git: 
    url: git://github.com/2d-inc/Flare-Flutter.git
    ref: dev
    path: flare_flutter

[truongsinh]

1.7.8-hotfix.2 is now stable, we need to fix this in the stable version of flare as well

[luigi-rosso]

We already updated flare_flutter for this yesterday! Please update your flare_flutter dependency in pubspec.yaml to ^1.5.4 and run pub get.

[truongsinh]

@luigi-rosso can you also check https://github.com/2d-inc/Nima-Flutter/pull/16, because it's a blocker for https://github.com/flutter/slideplayer/pull/8

[luigi-rosso]

Yes, I’ll take a look at this today!

[truongsinh]

Should this ticket be closed then?

[luigi-rosso]

Closing this issue. If you still see this, you’re likely on an old flutter or flare version. Make sure to update flare_flutter to 1.5.4 and run flutter upgrade on flutter channel stable.

[MannyDiera]

@luigi-rosso Had the same issue, followed the instructions above and was fixed.
For all others running into this issue.
1.- Add flare_flutter: ^1.5.4 in pubspec.yaml file.
2.- Run 'flutter upgrade'
3.- Profit
Thanks!