添加 firebase admin sdk 时出现 Flutter 错误：PathNotFoundException：无法打开文件

Question

当我添加 firebase admin 和 json 文件的路径时， 有一个错误无法修复：

void main() async {
    WidgetsFlutterBinding.ensureInitialized();
    var cred = FirebaseAdmin.instance.certFromPath('admin-services.json');
    print(cred.toString());
    FirebaseAdmin.instance.initializeApp(
            AppOptions(
                credential: cred,
                databaseUrl: databaseURL,
            ),
    );
    await Firebase.initializeApp(
            options: DefaultFirebaseOptions.currentPlatform,
    );
    runApp(const MyApp());
}

这里的错误：

E/flutter (16111): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: FirebaseAppError(app/invalid-credential): Failed to parse certificate key file: PathNotFoundException: Cannot open file, path = 'admin-services.json' (OS Error: No such file or directory, errno = 2)
E/flutter (16111): #0      new ServiceAccountCredential credential.dart:97
E/flutter (16111): #1      FirebaseAdmin.certFromPath   admin.dart:113
E/flutter (16111): #2      main main.dart:14
E/flutter (16111): #3      _runMain.<anonymous closure> (dart:ui/hooks.dart:131:23)
E/flutter (16111): #4      _delayEntrypointInvocation.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:296:19)
E/flutter (16111): #5      _RawReceivePort._handleMessage (dart:isolate-patch/isolate_patch.dart:189:12)

我尝试移动文件，甚至使用 json 文件的绝对路径或其他方式，但也收到错误：

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  var cred = FirebaseAdmin.instance.cert(projectId: projectId, 
      clientEmail: clientEmail, 
      privateKey: privateKey);
  print(cred.toString());
  FirebaseAdmin.instance.initializeApp(
    AppOptions(
      credential: cred,
      databaseUrl: databaseURL,
    ),
  );
  await Firebase.initializeApp(
    options: DefaultFirebaseOptions.currentPlatform,
  );
  runApp(const MyApp());
}

错误：

E/flutter (15745): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: UnimplementedError
E/flutter (15745): #0      FirebaseAdmin.cert admin.dart:108
E/flutter (15745): #1      main main.dart:14
E/flutter (15745): #2      _runMain.<anonymous closure> (dart:ui/hooks.dart:131:23)
E/flutter (15745): #3      _delayEntrypointInvocation.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:296:19)
E/flutter (15745): #4      _RawReceivePort._handleMessage (dart:isolate-patch/isolate_patch.dart:189:12)

Answer 1

您必须将其移至 android/app 下。你可以检查这个