我正在制作在YouTube上看到的Flutter上的Date Time应用程序。每当我尝试运行该程序时，在控制台上总是会显示“ E / flutter（31302）：[ERROR：flutter / lib / ui / ui_dart_state.cc（177）]未处理的异常：”，其中包含许多其他软件包。我不知道该怎么办以及我可以采取什么解决方案。顺便说一句，我在Flutter上禁用了一些插件，以加快Android Studio的运行速度。您是否认为这是我出错的原因之一？我想先在视频中显示日期时间和偏移量到控制台。我尝试打开网络，希望可能不会连接到互联网可能有所帮助，但是我仍然遇到相同的错误。谢谢你，上帝保佑。这是我的代码。
'''
import 'package:flutter/material.dart';
import 'package:http/http.dart';
import 'dart:convert';
class loading extends StatefulWidget {
@override
_loadingState createState() => _loadingState();
}
class _loadingState extends State<loading> {
void getTime() async{
Response response = await get('http://worldtimeapi.org/api/timezone/Europe/London');
Map data = jsonDecode(response.body);
//print(data);
String datetime = data['datetime'];
String offset = data['utc_offset'];
print (datetime);
print(offset);
}
@override
void initState() {
super.initState();
getTime();
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: Text('Loading'),
);
}
}
'''
这是错误消息：
'''
Launching lib\main.dart on CPH1803 in debug mode...
Running Gradle task 'assembleDebug'...
√ Built build\app\outputs\flutter-apk\app-debug.apk.
Waiting for CPH1803 to report its views...
Debug service listening on ws://127.0.0.1:63067/xeetvh83VWI=/ws
Syncing files to device CPH1803...
D/libc-netbsd(12939): [getaddrinfo]: hostname=worldtimeapi.org; servname=(null); app_pid=12939; app_uid=10145; ai_flags=1024; ai_family=0; ai_socktype=1 from prox result 0
E/flutter (12939): [ERROR:flutter/lib/ui/ui_dart_state.cc(177)] Unhandled Exception:
E/flutter (12939): #0 IOClient.send (package:http/src/io_client.dart:62:7)
E/flutter (12939): <asynchronous suspension>
E/flutter (12939): #1 BaseClient._sendUnstreamed (package:http/src/base_client.dart:91:38)
E/flutter (12939): #2 BaseClient.get (package:http/src/base_client.dart:27:7)
E/flutter (12939): #3 get.<anonymous closure> (package:http/http.dart:46:36)
E/flutter (12939): #4 _withClient (package:http/http.dart:166:20)
E/flutter (12939): #5 get (package:http/http.dart:46:5)
E/flutter (12939): #6 _loadingState.getTime (package:world_time/pages/loading.dart:12:31)
E/flutter (12939): #7 _loadingState.initState (package:world_time/pages/loading.dart:27:5)
E/flutter (12939): #8 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4765:58)
E/flutter (12939): #9 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4601:5)
E/flutter (12939): #10 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3569:14)
E/flutter (12939): #11 Element.updateChild (package:flutter/src/widgets/framework.dart:3327:18)
E/flutter (12939): #12 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:6118:14)
E/flutter (12939): #13 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3569:14)
E/flutter (12939): #14 Element.updateChild (package:flutter/src/widgets/framework.dart:3327:18)
E/flutter (12939): #15 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4652:16)
E/flutter (12939): #16 Element.rebuild (package:flutter/src/widgets/framework.dart:4343:5)
E/flutter (12939): #17 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4606:5)
E/flutter (12939): #18 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4601:5)
E/flutter (12939): #19 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3569:14)
E/flutter (12939): #20 Element.updateChild (package:flutter/src/widgets/framework.dart:3327:18)
E/flutter (12939): #21 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:6118:14)
E/flutter (12939): #22 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3569:14)
E/flutter (12939): #23 Element.updateChild (package:flutter/src/widgets/framework.dart:3327:18)
E/flutter (12939): #24 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:6118:14)
E/flutter (12939): #25 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3569:14)
E/flutter (12939): #26 Element.updateChild (package:flutter/src/widgets/framework.dart:3327:18)
E/flutter (12939): #27 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4652:16)
E/flutter (12939): #28 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:4800:11)
E/flutter (12939): #29 Element.rebuild (package:flutter/src/widgets/framework.dart:4343:5)
E/flutter (12939): #30 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4606:5)
E/flutter (12939): #31 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4791:11)
E/flutter (12939): #32 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4601:5)
E/flutter (12939): #33 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3569:14)
E/flutter (12939): #34 Element.updateChild (package:flutter/src/widgets/framework.dart:3327:18)
E/flutter (12939): #35 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:6118:14)
E/flutter (12939): #36 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3569:14)
E/flutter (12939): #37 Element.updateChild (package:flutter/src/widgets/framework.dart:3327:18)
E/flutter (12939): #38 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:6118:14)
E/flutter (12939): #39 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3569:14)
E/flutter (12939): #40 Element.updateChild (package:flutter/src/widgets/framework.dart:3327:18)
E/flutter (12939): #41 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4652:16)
E/flutter (12939): #42 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:4800:11)
E/flutter (12939): #43 Element.rebuild (package:flutter/src/widgets/framework.dart:4343:5)
E/flutter (12939): #44 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4606:5)
E/flutter (12939): #45 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4791:11)
E/flutter (12939): #46 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4601:5)
E/flutter (12939): #47 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3569:14)
E/flutter (12939): #48 Ele
''' 如果我的问题仍然令人困惑，请告诉我，以便我解决问题。请帮助我，谢谢。