如何解决“Foundation”的问题和“UIKit”在appcenter构建中找不到？
我已将“Xamarin.ios”的引用添加到我的项目中，并且它在本地运行良好。我已提交代码并在应用程序中心对其进行了构建，但它失败并显示错误，如下所述。
/Users/runner/work/1/s/Project/ViewModels/OrderViewModel.cs(19,7): error CS0246: The type or namespace name 'Foundation' could not be found (are you missing a using directive or an assembly reference?) [/Users/runner/work/1/s/Project/Project.csproj]
/Users/runner/work/1/s/Project/ViewModels/OrderViewModel.cs(20,7): error CS0246: The type or namespace name 'UIKit' could not be found (are you missing a using directive or an assembly reference?) [/Users/runner/work/1/s/Project/Project.csproj]
Time Elapsed 00:00:08.79
##[error]Error: The process '/Library/Frameworks/Mono.framework/Versions/6_12_11/bin/msbuild' failed with exit code 1
我也尝试过各种单声道版本，但它对我不起作用。您能给我建议同样的解决方案吗？
I have added a reference for "Xamarin.ios" to my project and it is working fine locally. I have committed the code and made a build for it in appcenter but it is failing and showing me error as mentioned below.
/Users/runner/work/1/s/Project/ViewModels/OrderViewModel.cs(19,7): error CS0246: The type or namespace name 'Foundation' could not be found (are you missing a using directive or an assembly reference?) [/Users/runner/work/1/s/Project/Project.csproj]
/Users/runner/work/1/s/Project/ViewModels/OrderViewModel.cs(20,7): error CS0246: The type or namespace name 'UIKit' could not be found (are you missing a using directive or an assembly reference?) [/Users/runner/work/1/s/Project/Project.csproj]
Time Elapsed 00:00:08.79
##[error]Error: The process '/Library/Frameworks/Mono.framework/Versions/6_12_11/bin/msbuild' failed with exit code 1
I have also tried with various mono versions but it did not work for me. Can you please suggest me the solution for the same?
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确保
Xamarin.iOS在iOS 项目而非共享项目中引用，因为 netstandard 项目无法使用任何特定于 Xamarin.iOS 的 API。打开您的 iOS
csproj文件，检查其中是否存在请参阅 https://github.com/xamarin/xamarin-macios/issues/10191< /a> .
Ensure that
Xamarin.iOShas referenced iniOS projectnotshared prject, because netstandard project can't use any API specific to Xamarin.iOS .Open your iOS
csprojfile to check if<Reference Include="Xamarin.iOS" />exists there .Refer to https://github.com/xamarin/xamarin-macios/issues/10191 .