Unhandled Exception: FormatException: Unexpected extension byte

[DWarrior222]

使用的 Kraken 版本 ｜ What version of kraken are you using

kraken：0.11.0
集成：在 flutter 中集成
flutter 版本：2.8.1
运行设备：安卓手机
官网的 demo 是没问题的，但是用 vuecli 创建的demo，会有这个报错

重现步骤 ｜ Steps To Reproduce

打开 app 后，首页是 firstRoute，点击按钮后第一次跳转到 secondRoute（kraken）是正常的。返回到首页再跳转 secondRoute（kraken）就会这样

重现代码 | Code example:

// main.dart
import 'package:flutter/material.dart';
import 'package:kraken/kraken.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: FirstRoute(),
    );
  }
}


class FirstRoute extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('First Route'),
      ),
      body: Center(
        child: ElevatedButton(
          child: const Text('Open route'),
          onPressed: () {
            Navigator.push(
              context,
              MaterialPageRoute(builder: (context) => SecondRoute()),
            );
          },
        ),
      ),
    );
  }
}


class SecondRoute extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    // 链接是：vuecli 创建的项目并build 后将 app.js 上传到 cdn 生成的链接，和官网的 https://andycall.oss-cn-beijing.aliyuncs.com/demo/guide-styles.js 是一个意思，我放在下面这个链接里了
    // https://raw.githubusercontent.com/DWarrior222/node-static-server/master/app.226ff3cb.js
    Kraken kraken = Kraken(bundle: KrakenBundle.fromUrl('https://test.com/xxxxx.js'));
    return kraken;
  }
}

预期结果 ｜ Expected results:
重复操作 “firstRoute 跳转到 secondRoute 后，返回 firstRoute”。页面都正常展示

实际结果 ｜ Actual results:
firstRoute 跳转到 secondRoute 后，返回 firstRoute，再次跳转到 secondRoute 会报错 app 会黑屏

[DWarrior222]

报错信息
[+670080 ms] E/flutter (18501): [ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: FormatException: Unexpected extension byte (at offset 1)
[ +2 ms] E/flutter (18501): #0 _Utf8Decoder.convertSingle (dart:convert-patch/convert_patch.dart:1789:7)
[ ] E/flutter (18501): #1 Utf8Decoder.convert (dart:convert/utf.dart:318:42)
[ ] E/flutter (18501): #2 Utf8Codec.decode (dart:convert/utf.dart:63:20)
[ ] E/flutter (18501): #3 _resolveUtf8StringFromData (package:kraken/src/foundation/convert.dart:22:17)
[ ] E/flutter (18501): #4 resolveStringFromData (package:kraken/src/foundation/convert.dart:11:12)
[ ] E/flutter (18501): #5 KrakenController._evaluateEntrypoint (package:kraken/src/launcher/controller.dart:1201:42)
[ ] E/flutter (18501): #6 KrakenController.executeEntrypoint (package:kraken/src/launcher/controller.dart:1134:9)
[ ] E/flutter (18501):
[ ] E/flutter (18501): #7 _KrakenRenderObjectElement.mount (package:kraken/src/widget/kraken.dart:292:5)
[ ] E/flutter (18501):
[ ] E/flutter (18501):

[andycall]

Try 0.12.0 version again?

[DWarrior222]

试过了，问题已解决 👍🏻