为xamarin ios构建firebase ios sdk绑定时发生链接器错误



我已经在xamarin中为最新的firebase-sdk创建了ios绑定。我添加了以下

[assembly: LinkWith("Firebase.a", LinkTarget.Simulator | LinkTarget.ArmV7, ForceLoad = true, Frameworks = "CFNetwork Security SystemConfiguration", LinkerFlags = "-ObjC -fobjc-arc -licucore -lc++")]

当我编译时,在"编译到本机代码"阶段,编译器会出错,并显示以下消息:

error MT5211: Native linking failed, undefined Objective-C class: _OBJC_CLASS_$_FirebaseHandle. If '_OBJC_CLASS_$_FirebaseHandle' is a protocol from a third-party binding, please check that it has the [Protocol] attribute in its api definition file, otherwise verify that all the necessary frameworks have been referenced and native libraries are properly linked in.

知道为什么会发生这种事吗?

[更新]

在进一步的分析中,我发现firebase sdk的一个头文件有以下条目

typedef NSUInteger FirebaseHandle;

我已经在ApiDefinition.cs文件以及中添加了相应的绑定信息

[BaseType(typeof(NSObject))]
interface FirebaseHandle
{
}

但我仍然得到错误

尝试添加

SmartLink = true

x.linkwith.cs文件

ApiDefinition.cs 中删除

[BaseType(typeof(NSObject))]
interface FirebaseHandle
{
}

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