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Flutter应用程序引发Http异常并立即崩溃

目前,我在运行Flutter应用程序时遇到问题。我尝试搜索解决方案,但实际上都不是我的情况。问题是,当我尝试安装应用程序时,有时它会开始运行,但立即崩溃,甚至无法生成,并抛出此异常(即使使用flutter演示项目):

Error connecting to the service protocol: HttpException: Connection closed before full header was received, uri = http://127.0.0.1:57564/ws". 
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到目前为止,我已经尝试过:清理现金,重新安装flutter / android studio。我只有几个(android os)手机遇到了这个问题。导入'package:flutter / material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: Scaffold(appBar: AppBar(title: Text("App"))),
    );
  }
}
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android httpexception dart flutter

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