Flutter：架构 arm64 的未定义符号

Question

迁移到 null-safety 和 flutter 2 后，我遇到了 ios build 的问题：
我运行flutter clean; rm ios/Podfile.lock pubspec.lock; rm -rf ios/Pods ios/Runner.xcworkspace; flutter run --flavor dev -t lib/main_dev.dart

得到这个 logcat:

    Undefined symbols for architecture arm64:
      "_OBJC_CLASS_$_FlutterStandardTypedData", referenced from:
          objc-class-ref in google_maps_flutter(GoogleMapController.o)
      "_OBJC_CLASS_$_FlutterStandardMessageCodec", referenced from:
          objc-class-ref in google_maps_flutter(GoogleMapController.o)
      "_OBJC_CLASS_$_FlutterError", referenced from:
          objc-class-ref in firebase_core(FLTFirebasePlugin.o)
          objc-class-ref in google_maps_flutter(FLTGoogleMapsPlugin.o)
          objc-class-ref in google_maps_flutter(FLTGoogleMapTileOverlayController.o)
          objc-class-ref in google_maps_flutter(GoogleMapMarkerController.o)
          objc-class-ref in google_maps_flutter(GoogleMapController.o)
          objc-class-ref in onesignal_flutter(OSFlutterCategories.o)
      "_OBJC_CLASS_$_FlutterMethodChannel", referenced from:
          objc-class-ref in firebase_core(FLTFirebaseCorePlugin.o)
          objc-class-ref in firebase_crashlytics(FLTFirebaseCrashlyticsPlugin.o)
          objc-class-ref in google_maps_flutter(GoogleMapController.o)
          objc-class-ref in onesignal_flutter(OSFlutterOutcomeEventsController.o)
          objc-class-ref in onesignal_flutter(OneSignalPlugin.o)
          objc-class-ref in onesignal_flutter(OSFlutterTagsController.o)
          objc-class-ref in onesignal_flutter(OSFlutterInAppMessagesController.o)
          ...
      "_FlutterMethodNotImplemented", referenced from:
          -[FLTFirebaseCorePlugin handleMethodCall:result:] in firebase_core(FLTFirebaseCorePlugin.o)
          -[FLTFirebaseCrashlyticsPlugin handleMethodCall:result:] in firebase_crashlytics(FLTFirebaseCrashlyticsPlugin.o)
          ___61-[FLTTileProviderController requestTileForX:y:zoom:receiver:]_block_invoke in google_maps_flutter(FLTGoogleMapTileOverlayController.o)
          -[FLTGoogleMapController onMethodCall:result:] in google_maps_flutter(GoogleMapController.o)
          -[OSFlutterOutcomeEventsController handleMethodCall:result:] in onesignal_flutter(OSFlutterOutcomeEventsController.o)
          -[OneSignalPlugin handleMethodCall:result:] in onesignal_flutter(OneSignalPlugin.o)
          -[OSFlutterTagsController handleMethodCall:result:] in onesignal_flutter(OSFlutterTagsController.o)
          ...
    ld: symbol(s) not found for architecture arm64
    clang: error: linker command failed with exit code 1 (use -v to see invocation)

full log is here

我尝试过但没有帮助：

pod deintegrate && rm Podfile.lock && pod install --repo-update
在 Podfile

platform :ios, '12.0'

在构建设置中手动设置架构为arm64

这个问题我在两个 flutter 项目中遇到过，但我不知道如何解决。

更新：看起来像是 OneSignal https://github.com/OneSignal/OneSignal-Flutter-SDK/issues/389

的问题

UPD2:
有问题的示例项目 https://github.com/rovkinmax/OneSignalSDKProblem

Answer 1

我找到了这个问题的解决方案：

将所选配置设置为 None

检查复选框是否已打开

更多信息here and here

Answer 2

我也遇到了这个问题，用

解决了

构建设置 -> 搜索有效架构：

从列表中删除 armv7

If Xcode version > 12.0 Then go project or target -> Build Settings -> Excluded Architecture

然后添加armv7

Flutter：架构 arm64 的未定义符号

Flutter: Undefined symbols for architecture arm64

onesignal

flutter

flutter-ios

flutter2.0