错误:flutter/lib/ui/ui_dart_state.cc(209)未处理的异常: PlatformException

Question

我有我的颤振应用程序与防火墙集成，一切都很好，但当我试图运行我的应用程序时，集成了防火墙后，我就出错了。我的主要方法如下：

Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
   await Firebase.initializeApp(
   options: DefaultFirebaseOptions.currentPlatform,
  );

 runApp(child: MyApp());
}

错误：

E/flutter ( 7922): [ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception:
PlatformException(firebase_core, FirebaseApp name [DEFAULT] already exists!, null, null)
E/flutter ( 7922): #0      StandardMethodCodec.decodeEnvelope 
(package:flutter/src/services/message_codecs.dart:607:7)
E/flutter ( 7922): #1      MethodChannel._invokeMethod 
(package:flutter/src/services/platform_channel.dart:177:18)
E/flutter ( 7922): <asynchronous suspension>
E/flutter ( 7922): #2      MethodChannel.invokeMapMethod 
(package:flutter/src/services/platform_channel.dart:377:43)
E/flutter ( 7922): <asynchronous suspension>
E/flutter ( 7922): #3      MethodChannelFirebase.initializeApp (package:firebase_core_platform_interface/src/method_channel/method_channel_firebase.dart:100:40)
E/flutter ( 7922): <asynchronous suspension>
E/flutter ( 7922): #4      Firebase.initializeApp 
(package:firebase_core/src/firebase.dart:40:31)
E/flutter ( 7922): <asynchronous suspension>
E/flutter ( 7922): #5      main (package:zunada/main.dart:11:3)
E/flutter ( 7922): <asynchronous suspension>
E/flutter ( 7922): 

Answer 1

我在用flutterfire创建firebase应用程序时也遇到了类似的问题。我意识到flutterfire在不同的项目中创建了同名的应用程序。然后我尝试了两种方法，而且效果很好。

• 1:在每个firebase项目中手动更改应用程序名.

• 2:初始化时添加param名称，例如在main_dev.dart

中

示例：

await Firebase.initializeApp(
 name: "dev-project",
 options: DefaultFirebaseOptions.currentPlatform);

为了保持一致性，我在firebase控制台中使用了与我的项目ID相同的名称，请记住，您不能在名称中添加空格(只有破折号-)。