alexsorokoletov
commented
4 years ago @carbon-paulc Paul, I think armv7s is not supported by Agora SDK which (if I recall correctly) only supports 64bit apps now (same as many other current iOS SDKs).
Closed CarbonLabsUK closed 4 years ago
alexsorokoletov
commented
4 years ago @carbon-paulc Paul, I think armv7s is not supported by Agora SDK which (if I recall correctly) only supports 64bit apps now (same as many other current iOS SDKs).
Hi, I'm trying to use this nuget package (Xamarin.Agora.Full.Forms) in a .NET Standard Xamarin.Forms project.
Everything works on Android okay, however, when I try to build for the AppStore I'm getting some Linker errors.
Any help would be appreciated.
Thanks in advance, Paul. 5> Undefined symbols for architecture armv7s: 5> "_AgoraVideoBitrateCompatible", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoBitrateCompatible) 5> "_AgoraVideoBitrateStandard", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoBitrateStandard) 5> "_AgoraVideoDimension120x120", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension120x120) 5> "_AgoraVideoDimension1280x720", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension1280x720) 5> "_AgoraVideoDimension160x120", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension160x120) 5> "_AgoraVideoDimension180x180", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension180x180) 5> "_AgoraVideoDimension1920x1080", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension1920x1080) 5> "_AgoraVideoDimension240x180", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension240x180) 5> "_AgoraVideoDimension240x240", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension240x240) 5> "_AgoraVideoDimension2540x1440", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension2540x1440) 5> "_AgoraVideoDimension320x180", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension320x180) 5> "_AgoraVideoDimension320x240", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension320x240) 5> "_AgoraVideoDimension360x360", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension360x360) 5> "_AgoraVideoDimension3840x2160", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension3840x2160) 5> "_AgoraVideoDimension424x240", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension424x240) 5> "_AgoraVideoDimension480x360", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension480x360) 5> "_AgoraVideoDimension480x480", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension480x480) 5> "_AgoraVideoDimension640x360", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension640x360) 5> "_AgoraVideoDimension640x480", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension640x480) 5> "_AgoraVideoDimension840x480", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension840x480) 5> "_AgoraVideoDimension960x720", referenced from: 5> -u command line option 5> (maybe you meant: _Xamarin_Agora_Full_iOS_DT_Xamarin_Agora_Constants_get_AgoraVideoDimension960x720) 5> "_OBJCCLASS$_AgoraChannelStats", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraImage", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraLiveInjectStreamConfig", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraLiveTranscoding", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraLiveTranscodingUser", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraPublisherConfiguration", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraRtcAudioVolumeInfo", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraRtcDefaultCamera", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraRtcDefaultRenderer", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraRtcEngineKit", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraRtcLocalVideoStats", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraRtcRemoteVideoStats", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraRtcVideoCanvas", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraRtcVideoCompositingLayout", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraRtcVideoCompositingRegion", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraVideoEncoderConfiguration", referenced from: 5> objc-class-ref in registrar.o 5> "_OBJCCLASS$_AgoraVideoFrame", referenced from: 5> objc-class-ref in registrar.o 5> (maybe you meant: _OBJCCLASS$_AgoraVideoFrameConsumer) 5> ld: symbol(s) not found for architecture armv7s 5> clang: error: linker command failed with exit code 1 (use -v to see invocation) 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5209: Native linking error: warning: ignoring file /Users/pcharlton/Library/Caches/Xamarin/mtbs/builds/Kingdom.MyCare.iOS/245ff3320e81ecbf962604d451a97f88/obj/iPhone/AppStore/mtouch-cache/AgoraRtcCryptoLoader.framework/AgoraRtcCryptoLoader, missing required architecture armv7s in file /Users/pcharlton/Library/Caches/Xamarin/mtbs/builds/Kingdom.MyCare.iOS/245ff3320e81ecbf962604d451a97f88/obj/iPhone/AppStore/mtouch-cache/AgoraRtcCryptoLoader.framework/AgoraRtcCryptoLoader (4 slices) 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5209: Native linking error: warning: ignoring file /Users/pcharlton/Library/Caches/Xamarin/mtbs/builds/Kingdom.MyCare.iOS/245ff3320e81ecbf962604d451a97f88/obj/iPhone/AppStore/mtouch-cache/AgoraRtcEngineKit.framework/AgoraRtcEngineKit, missing required architecture armv7s in file /Users/pcharlton/Library/Caches/Xamarin/mtbs/builds/Kingdom.MyCare.iOS/245ff3320e81ecbf962604d451a97f88/obj/iPhone/AppStore/mtouch-cache/AgoraRtcEngineKit.framework/AgoraRtcEngineKit (4 slices) 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoBitrateCompatible. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoBitrateCompatible. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoBitrateStandard. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoBitrateStandard. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension120x120. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension120x120. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension1280x720. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension1280x720. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension160x120. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension160x120. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension180x180. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension180x180. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension1920x1080. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension1920x1080. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension240x180. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension240x180. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension240x240. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension240x240. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension2540x1440. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension2540x1440. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension320x180. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension320x180. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension320x240. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension320x240. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension360x360. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension360x360. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension3840x2160. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension3840x2160. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension424x240. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension424x240. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension480x360. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension480x360. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension480x480. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension480x480. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension640x360. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension640x360. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension640x480. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension640x480. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension840x480. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension840x480. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5214: Native linking failed, undefined symbol: _AgoraVideoDimension960x720. This symbol was referenced by the managed member DT.Xamarin.Agora.Constants.AgoraVideoDimension960x720. Please verify that all the necessary frameworks have been referenced and native libraries linked. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraChannelStats. The symbol '_OBJCCLASS$_AgoraChannelStats' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraImage. The symbol '_OBJCCLASS$_AgoraImage' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraLiveInjectStreamConfig. The symbol '_OBJCCLASS$_AgoraLiveInjectStreamConfig' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraLiveTranscoding. The symbol '_OBJCCLASS$_AgoraLiveTranscoding' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraLiveTranscodingUser. The symbol '_OBJCCLASS$_AgoraLiveTranscodingUser' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraPublisherConfiguration. The symbol '_OBJCCLASS$_AgoraPublisherConfiguration' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraRtcAudioVolumeInfo. The symbol '_OBJCCLASS$_AgoraRtcAudioVolumeInfo' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraRtcDefaultCamera. The symbol '_OBJCCLASS$_AgoraRtcDefaultCamera' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraRtcDefaultRenderer. The symbol '_OBJCCLASS$_AgoraRtcDefaultRenderer' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraRtcEngineKit. The symbol '_OBJCCLASS$_AgoraRtcEngineKit' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraRtcLocalVideoStats. The symbol '_OBJCCLASS$_AgoraRtcLocalVideoStats' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraRtcRemoteVideoStats. The symbol '_OBJCCLASS$_AgoraRtcRemoteVideoStats' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraRtcVideoCanvas. The symbol '_OBJCCLASS$_AgoraRtcVideoCanvas' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraRtcVideoCompositingLayout. The symbol '_OBJCCLASS$_AgoraRtcVideoCompositingLayout' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraRtcVideoCompositingRegion. The symbol '_OBJCCLASS$_AgoraRtcVideoCompositingRegion' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraVideoEncoderConfiguration. The symbol '_OBJCCLASS$_AgoraVideoEncoderConfiguration' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5211: Native linking failed, undefined Objective-C class: AgoraVideoFrame. The symbol '_OBJCCLASS$_AgoraVideoFrame' could not be found in any of the libraries or frameworks linked with your application. 5>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(795,3): error MT5202: Native linking failed. Please review the build log.