iOS compilation error: firebase_*/ios/Classes/UserAgent.h: No such file or directory

@momoDragon commented on Oct 10, 2019, 1:55 AM UTC:

Version:
google_maps_flutter 0.5.21+7

Steps tried:
pod install
pod update
flutter pub cache repair

Error given:

 ** BUILD FAILED **

Xcode's output:
↳
    In file included from /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapsPlugin.m:5:
    In file included from /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapsPlugin.h:8:
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:14:52: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (void)setCameraTargetBounds:(GMSCoordinateBounds *)bounds;
                                                       ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:14:52: note: insert '_Nullable' if the pointer may be null
    - (void)setCameraTargetBounds:(GMSCoordinateBounds *)bounds;
                                                       ^
                                                        _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:14:52: note: insert '_Nonnull' if the pointer should never be null
    - (void)setCameraTargetBounds:(GMSCoordinateBounds *)bounds;
                                                       ^
                                                        _Nonnull
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:37:65: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
                        registrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                    ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:37:65: note: insert '_Nullable' if the pointer may be null
                        registrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                    ^
                                                                     _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:37:65: note: insert '_Nonnull' if the pointer should never be null
                        registrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                    ^
                                                                     _Nonnull
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:40:50: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (void)animateWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                     ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:40:50: note: insert '_Nullable' if the pointer may be null
    - (void)animateWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                     ^
                                                      _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:40:50: note: insert '_Nonnull' if the pointer should never be null
    - (void)animateWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                     ^
                                                      _Nonnull
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:41:47: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (void)moveWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                  ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:41:47: note: insert '_Nullable' if the pointer may be null
    - (void)moveWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                  ^
                                                   _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:41:47: note: insert '_Nonnull' if the pointer should never be null
    - (void)moveWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                  ^
                                                   _Nonnull
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:42:22: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (GMSCameraPosition *)cameraPosition;
                         ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:42:22: note: insert '_Nullable' if the pointer may be null
    - (GMSCameraPosition *)cameraPosition;
                         ^
                          _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:42:22: note: insert '_Nonnull' if the pointer should never be null
    - (GMSCameraPosition *)cameraPosition;
                         ^
                          _Nonnull
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:4: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
       ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:4: note: insert '_Nullable' if the pointer may be null
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
       ^
                    _Nullable 
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:4: note: insert '_Nonnull' if the pointer should never be null
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
       ^
                    _Nonnull 
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:69: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                        ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:69: note: insert '_Nullable' if the pointer may be null
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                        ^
                                                                         _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:69: note: insert '_Nonnull' if the pointer should never be null
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                        ^
                                                                         _Nonnull
    7 warnings generated.
    In file included from /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapMarkerController.m:5:
    In file included from /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapMarkerController.h:7:
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:14:52: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (void)setCameraTargetBounds:(GMSCoordinateBounds *)bounds;
                                                       ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:14:52: note: insert '_Nullable' if the pointer may be null
    - (void)setCameraTargetBounds:(GMSCoordinateBounds *)bounds;
                                                       ^
                                                        _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:14:52: note: insert '_Nonnull' if the pointer should never be null
    - (void)setCameraTargetBounds:(GMSCoordinateBounds *)bounds;
                                                       ^
                                                        _Nonnull
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:37:65: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
                        registrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                    ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:37:65: note: insert '_Nullable' if the pointer may be null
                        registrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                    ^
                                                                     _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:37:65: note: insert '_Nonnull' if the pointer should never be null
                        registrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                    ^
                                                                     _Nonnull
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:40:50: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (void)animateWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                     ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:40:50: note: insert '_Nullable' if the pointer may be null
    - (void)animateWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                     ^
                                                      _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:40:50: note: insert '_Nonnull' if the pointer should never be null
    - (void)animateWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                     ^
                                                      _Nonnull
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:41:47: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (void)moveWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                  ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:41:47: note: insert '_Nullable' if the pointer may be null
    - (void)moveWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                  ^
                                                   _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:41:47: note: insert '_Nonnull' if the pointer should never be null
    - (void)moveWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                  ^
                                                   _Nonnull
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:42:22: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (GMSCameraPosition *)cameraPosition;
                         ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:42:22: note: insert '_Nullable' if the pointer may be null
    - (GMSCameraPosition *)cameraPosition;
                         ^
                          _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:42:22: note: insert '_Nonnull' if the pointer should never be null
    - (GMSCameraPosition *)cameraPosition;
                         ^
                          _Nonnull
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:4: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
       ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:4: note: insert '_Nullable' if the pointer may be null
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
       ^
                    _Nullable 
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:4: note: insert '_Nonnull' if the pointer should never be null
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
       ^
                    _Nonnull 
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:69: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                        ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:69: note: insert '_Nullable' if the pointer may be null
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                        ^
                                                                         _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:69: note: insert '_Nonnull' if the pointer should never be null
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                        ^
                                                                         _Nonnull
    7 warnings generated.
    In file included from /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.m:5:
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:14:52: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (void)setCameraTargetBounds:(GMSCoordinateBounds *)bounds;
                                                       ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:14:52: note: insert '_Nullable' if the pointer may be null
    - (void)setCameraTargetBounds:(GMSCoordinateBounds *)bounds;
                                                       ^
                                                        _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:14:52: note: insert '_Nonnull' if the pointer should never be null
    - (void)setCameraTargetBounds:(GMSCoordinateBounds *)bounds;
                                                       ^
                                                        _Nonnull
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:37:65: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
                        registrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                    ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:37:65: note: insert '_Nullable' if the pointer may be null
                        registrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                    ^
                                                                     _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:37:65: note: insert '_Nonnull' if the pointer should never be null
                        registrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                    ^
                                                                     _Nonnull
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:40:50: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (void)animateWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                     ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:40:50: note: insert '_Nullable' if the pointer may be null
    - (void)animateWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                     ^
                                                      _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:40:50: note: insert '_Nonnull' if the pointer should never be null
    - (void)animateWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                     ^
                                                      _Nonnull
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:41:47: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (void)moveWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                  ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:41:47: note: insert '_Nullable' if the pointer may be null
    - (void)moveWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                  ^
                                                   _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:41:47: note: insert '_Nonnull' if the pointer should never be null
    - (void)moveWithCameraUpdate:(GMSCameraUpdate *)cameraUpdate;
                                                  ^
                                                   _Nonnull
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:42:22: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (GMSCameraPosition *)cameraPosition;
                         ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:42:22: note: insert '_Nullable' if the pointer may be null
    - (GMSCameraPosition *)cameraPosition;
                         ^
                          _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:42:22: note: insert '_Nonnull' if the pointer should never be null
    - (GMSCameraPosition *)cameraPosition;
                         ^
                          _Nonnull
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:4: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
       ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:4: note: insert '_Nullable' if the pointer may be null
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
       ^
                    _Nullable 
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:4: note: insert '_Nonnull' if the pointer should never be null
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
       ^
                    _Nonnull 
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:69: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                        ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:69: note: insert '_Nullable' if the pointer may be null
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                        ^
                                                                         _Nullable
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter-0.5.21+7/ios/Classes/GoogleMapController.h:47:69: note: insert '_Nonnull' if the pointer should never be null
    - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar;
                                                                        ^
                                                                         _Nonnull
    7 warnings generated.
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_sign_in-4.0.7/ios/Classes/GoogleSignInPlugin.m:137:41: warning: 'UIApplicationOpenURLOptionsSourceApplicationKey' is only available on iOS 9.0 or newer [-Wunguarded-availability]
      NSString *sourceApplication = options[UIApplicationOpenURLOptionsSourceApplicationKey];
                                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    In module 'UIKit' imported from /Users/mozesong/Documents/GitHub/Green-Hero-Apps-2.0/green_hero_vendor/ios/Pods/Target Support Files/google_sign_in/google_sign_in-prefix.pch:2:
    /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIApplication.h:538:51: note: 'UIApplicationOpenURLOptionsSourceApplicationKey' has been marked as being introduced in iOS 9.0 here, but the deployment target is iOS 8.0.0
    UIKIT_EXTERN UIApplicationOpenURLOptionsKey const UIApplicationOpenURLOptionsSourceApplicationKey NS_AVAILABLE_IOS(9_0);   // value is an NSString containing the bundle ID of the originating application
                                                      ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_sign_in-4.0.7/ios/Classes/GoogleSignInPlugin.m:137:41: note: enclose 'UIApplicationOpenURLOptionsSourceApplicationKey' in an @available check to silence this warning
      NSString *sourceApplication = options[UIApplicationOpenURLOptionsSourceApplicationKey];
                                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_sign_in-4.0.7/ios/Classes/GoogleSignInPlugin.m:138:27: warning: 'UIApplicationOpenURLOptionsAnnotationKey' is only available on iOS 9.0 or newer [-Wunguarded-availability]
      id annotation = options[UIApplicationOpenURLOptionsAnnotationKey];
                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    In module 'UIKit' imported from /Users/mozesong/Documents/GitHub/Green-Hero-Apps-2.0/green_hero_vendor/ios/Pods/Target Support Files/google_sign_in/google_sign_in-prefix.pch:2:
    /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIApplication.h:539:51: note: 'UIApplicationOpenURLOptionsAnnotationKey' has been marked as being introduced in iOS 9.0 here, but the deployment target is iOS 8.0.0
    UIKIT_EXTERN UIApplicationOpenURLOptionsKey const UIApplicationOpenURLOptionsAnnotationKey NS_AVAILABLE_IOS(9_0);   // value is a property-list typed object corresponding to what the originating application passed in UIDocumentInteractionController's annotation property
                                                      ^
    /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_sign_in-4.0.7/ios/Classes/GoogleSignInPlugin.m:138:27: note: enclose 'UIApplicationOpenURLOptionsAnnotationKey' in an @available check to silence this warning
      id annotation = options[UIApplicationOpenURLOptionsAnnotationKey];
                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    2 warnings generated.
    error: /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_auth-0.14.0+5/ios/Classes/UserAgent.h: No such file or directory
    error: /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_storage-3.0.6/ios/Classes/UserAgent.h: No such file or directory
    error: /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_core-0.4.0+9/ios/Classes/UserAgent.h: No such file or directory
    Runner-hkczeqbdyzwqvrazjtxoyzhjoorv
    note: Using new build systemnote: Planning buildnote: Constructing build description

Flutter doctor:

[✓] Flutter (Channel stable, v1.9.1+hotfix.2, on Mac OS X 10.14.6 18G103, locale en-MY)

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
[✓] Xcode - develop for iOS and macOS (Xcode 10.3)
[✓] Android Studio (version 3.4)
[✓] Connected device (2 available)

• No issues found!

This issue was moved by jmagman from flutter/flutter#42382.

@kedarprabhu46 commented on Oct 14, 2019, 4:39 AM UTC:

Changing the deployment target for the Runner project in Xcode to iOS 10.0 resolved this error for me.

@momoDragon commented on Oct 16, 2019, 12:33 AM UTC:

Changing the deployment target for the Runner project in Xcode to iOS 10.0 resolved this error for me.

is it in podfile?
platform :ios, '10.0'
The same error was given. Is there any fix yet? @janmoppel

@momoDragon commented on Nov 5, 2019, 2:21 AM UTC:

Hey guys any fix yet?

@kedarprabhu46 commented on Nov 5, 2019, 1:01 PM UTC:

Changing the deployment target for the Runner project in Xcode to iOS 10.0 resolved this error for me.

is it in podfile?
platform :ios, '10.0'
The same error was given. Is there any fix yet? @janmoppel

No you have to change it from xcode under target platform

@logemann commented on Nov 12, 2019, 12:33 AM UTC:

btw. Got the same error after adding google_maps_flutter . There should be a hint somewhere on the plugin page.

@basemelyyan commented on Nov 14, 2019, 10:11 PM UTC:

I got the same error.

@jmagman commented on Jan 23, 2020, 12:20 AM UTC:

Ignoring the @available warnings, the actual errors are:

 error: /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_auth-0.14.0+5/ios/Classes/UserAgent.h: No such file or directory
error: /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_storage-3.0.6/ios/Classes/UserAgent.h: No such file or directory
error: /Users/mozesong/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_core-0.4.0+9/ios/Classes/UserAgent.h: No such file or directory

Those missing files should be coming from the firebase* podspec prepare_command which only get run when the pod is first downloaded. I don't know how this works when the pod isn't being downloaded via pod but instead via a symlink to the pub-cache...
I was able to reproduce this by adding this to a pubspec:

  firebase_auth: 
  firebase_storage: 
  firebase_core: 

Running flutter pub get then running:

flutter pub cache repair

which deleted the UserAgent.h files.

I also don't know why adding google_maps_flutter would make this start happening since AFAIK it doesn't have any firebase dependencies. I'm guessing the user was really seeing some other issue, and in an attempt to fix it by repairing the cache, hit this other issue where the UserAgent header disappears and doesn't get regenerated.

Duplicate of FirebaseExtended/flutterfire#1730 but that one was closed for even though this is still an issue.

Essentially: s.prepare_command shouldn't be relied on in a podspec that is distributed via pub.

[iapicca]

Hi @momoDragon
are you still experiencing the same issue
with the latest stable version of flutter
and the latest flutterfire plugin?
thank you

[jmagman]

I just reproduced this.

[jmagman]

You can use GCC_PREPROCESSOR_DEFINITIONS to define LIBRARY_VERSION and LIBRARY_NAME instead of generating a non-prefixed file.

[IsaiahByDayah]

Just wanted to maybe note I’m seeing this issue as well with latest firebase_auth and google_sign_in

(I’m on mobile so hard to navigate github. Sorry if there’s a better issue to comment this in)