C# 无法在本机绑定Xamarin iOS中AOT程序集

很长时间以来，我一直试图将这个原生（Objective-C）项目转换为Xamarin.iOS，但一直未能成功

我遵循了所有在线可用的教程绑定到本机库

我有许多教程中建议的.a文件（示例中给出），我通过Xamarin.iOS绑定库项目和Objective Sharpie将其转换为.dll以生成API定义类。然而，我得到了许多错误，我以某种方式解决并生成了一个.dll文件。但是，它在Xamarin项目中不起作用，并给出以下错误：“无法AOT程序集…SP530.dll”

如果有人能把我推向正确的方向，我会非常感激，我已经为此工作了这么久

这是一个信用卡刷卡集成，这是我试图绑定的示例Xcode项目：

以下是biuld期间生成的日志：

Target '/Users/shaikhawais/Projects/BindingTestSP530/BindingTestSP530/obj/iPhone/Debug/device-builds/ipad4.5-10.3.1/mtouch-cache/arm64/libmscorlib.dll.dylib' does not exist.
        Target(s) /Users/shaikhawais/Projects/BindingTestSP530/BindingTestSP530/obj/iPhone/Debug/device-builds/ipad4.5-10.3.1/mtouch-cache/arm64/libmscorlib.dll.dylib must be rebuilt.
        /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang  -framework Security -framework Foundation -framework UIKit -weak_framework CoreFoundation -Xlinker -rpath -Xlinker @executable_path /Users/shaikhawais/Projects/BindingTestSP530/BindingTestSP530/obj/iPhone/Debug/device-builds/ipad4.5-10.3.1/mtouch-cache/arm64/mscorlib.dll.o /Library/Frameworks/Xamarin.iOS.framework/Versions/10.10.0.36/SDKs/MonoTouch.iphoneos.sdk/usr/lib/libmonosgen-2.0.dylib /Library/Frameworks/Xamarin.iOS.framework/Versions/10.10.0.36/SDKs/MonoTouch.iphoneos.sdk/usr/lib/libxamarin-debug.dylib -lz -gdwarf-2 -std=c99 -I/Library/Frameworks/Xamarin.iOS.framework/Versions/10.10.0.36/SDKs/MonoTouch.iphoneos.sdk/usr/include -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk -Qunused-arguments -miphoneos-version-min=10.3 -arch arm64 -shared -read_only_relocs suppress -install_name @rpath/libmscorlib.dll.dylib -fapplication-extension -o /Users/shaikhawais/Projects/BindingTestSP530/BindingTestSP530/obj/iPhone/Debug/device-builds/ipad4.5-10.3.1/mtouch-cache/arm64/libmscorlib.dll.dylib -DDEBUG
        MTOUCH : error MT3001: Could not AOT the assembly '/Users/shaikhawais/Projects/BindingTestSP530/BindingTestSP530/obj/iPhone/Debug/device-builds/ipad4.5-10.3.1/mtouch-cache/Build/LibraryTestSP530.dll'
          at Xamarin.Bundler.AOTTask+<ExecuteAsync>c__async1.MoveNext () [0x001dc] in /Users/builder/data/lanes/4691/d2270eec/source/xamarin-macios/tools/mtouch/BuildTasks.mtouch.cs:256 
        --- End of stack trace from previous location where exception was thrown ---
          at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:151 
          at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00037] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:187 
          at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:156 
          at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128 
          at System.Runtime.CompilerServices.TaskAwaiter.GetResult () [0x00000] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:113 
          at Xamarin.Bundler.BuildTask+<Execute>c__async0.MoveNext () [0x0024c] in /Users/builder/data/lanes/4691/d2270eec/source/xamarin-macios/tools/common/BuildTasks.cs:247 
        --- End of stack trace from previous location where exception was thrown ---
          at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:151 
          at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00037] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:187 
          at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:156 
          at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128 
          at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () [0x00000] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:357 
          at Xamarin.Bundler.BuildTask+<Execute>c__async0.MoveNext () [0x002eb] in /Users/builder/data/lanes/4691/d2270eec/source/xamarin-macios/tools/common/BuildTasks.cs:258 
        --- End of stack trace from previous location where exception was thrown ---
          at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:151 
          at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00037] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:187 
          at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:156 
          at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128 
          at System.Runtime.CompilerServices.TaskAwaiter.GetResult () [0x00000] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:113 
          at Xamarin.Bundler.BuildTask+<Execute>c__async0.MoveNext () [0x002eb] in /Users/builder/data/lanes/4691/d2270eec/source/xamarin-macios/tools/common/BuildTasks.cs:258 
        --- End of stack trace from previous location where exception was thrown ---
          at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:151 
          at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00037] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:187 
          at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:156 
          at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128 
          at System.Runtime.CompilerServices.TaskAwaiter.GetResult () [0x00000] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:113 
          at Xamarin.Bundler.BuildTask+<Execute>c__async0.MoveNext () [0x000c7] in /Users/builder/data/lanes/4691/d2270eec/source/xamarin-macios/tools/common/BuildTasks.cs:229 
        --- End of stack trace from previous location where exception was thrown ---
          at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:151 
          at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00037] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:187 
          at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:156 
          at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128 
          at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () [0x00000] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:357 
          at Xamarin.Bundler.BuildTask+<Execute>c__async0.MoveNext () [0x002eb] in /Users/builder/data/lanes/4691/d2270eec/source/xamarin-macios/tools/common/BuildTasks.cs:258 
        --- End of stack trace from previous location where exception was thrown ---
          at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:151 
          at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00037] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:187 
          at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:156 
          at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128 
          at System.Runtime.CompilerServices.TaskAwaiter.GetResult () [0x00000] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:113 
          at Xamarin.Bundler.BuildTask+<Execute>c__async0.MoveNext () [0x002eb] in /Users/builder/data/lanes/4691/d2270eec/source/xamarin-macios/tools/common/BuildTasks.cs:258 
        --- End of stack trace from previous location where exception was thrown ---
          at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:151 
          at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00037] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:187 
          at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:156 
          at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128 
          at System.Runtime.CompilerServices.TaskAwaiter.GetResult () [0x00000] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:113 
          at Xamarin.Bundler.BuildTask+<Execute>c__async0.MoveNext () [0x002eb] in /Users/builder/data/lanes/4691/d2270eec/source/xamarin-macios/tools/common/BuildTasks.cs:258 
        --- End of stack trace from previous location where exception was thrown ---
          at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:151 
          at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00037] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:187 
          at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:156 
          at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128 
          at System.Runtime.CompilerServices.TaskAwaiter.GetResult () [0x00000] in /private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:113 
          at Xamarin.Bundler.BuildTasks+<ExecuteBuildTasks>c__AnonStorey5+<ExecuteBuildTasks>c__async4.MoveNext () [0x00034] in /Users/builder/data/lanes/4691/d2270eec/source/xamarin-macios/tools/common/BuildTasks.cs:49 
        The command exited with code 1.
        Output Property: _CompiledArchitectures=ARM64
      Done executing task "MTouch" -- FAILED.
    Done building target "_CompileToNative" in project "BindingTestSP530.csproj" -- FAILED.

Target'/Users/shaikhawais/Projects/BindingTestSP530/BindingTestSP530/obj/iPhone/Debug/device builds/ipad4.5-10.3.1/mtouch cache/arm64/libmscorlib.dll.dylib'不存在。
必须重新生成目标/用户/shaikhawais/Projects/BindingTestSP530/BindingTestSP530/obj/iPhone/Debug/device builds/ipad4.5-10.3.1/mtouch-cache/arm64/libmscorlib.dll.dylib。
框架/安全性-框架基础-框架UIKIT -弱框架Found-Foundation -XLink - RPATH-XLIKER @ ExtruTable路径/Users/shaikhawais/Projects/BindingTestSP530/BindingTestSP530/obj/iPhone/Debug/devicebuilds/ipad4.5-10.3.1/mtouch cache/arm64/mscorlib.dll.o/Library/Frameworks/Xamarin.iOS.framework/Versions/10.10.0.36/SDKs/MonoTouch.iphoneos.sdk/usr/libmonosgen-2.0.dylib/Library/Frameworks/Xamarin.iOS.framework/Versions/10.10.0.36/SDKs/MonoTouch.iphoneos.sdk/usr/lib/libxamarin-debug.dylib-lz-gdwarf-2-std=c99-I/Library/Frameworks/Xamarin.iOS.framework/Versions/10.10.0.36/sdk/MonoTouch.iphoneos.sdk/usr/include-isysroot/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk-qused参数-miphoneos-version min=10.3-arch arm64-shared-read_only_relocs suppress-install_name@rpath/libmscorlib.dll.dylib-faapplication extension-o/Users/shaikhawais/Projects/BindingTestSP530/BindingTestSP530/obj/iPhone/Debug/devicebuilds/ipad4.5-10.3.1/mtouch-cache/arm64/libmscorlib.dll.dylib-DDEBUG
MTOUCH:错误MT3001:无法AOT程序集“/Users/shaikhawais/Projects/BindingTestSP530/BindingTestSP530/obj/iPhone/Debug/device builds/ipad4.5-10.3.1/MTOUCH cache/Build/LibraryTestSP530.dll”
在/Users/builder/data/lanes/4691/d2270eec/source/Xamarin-macios/tools/mtouch/BuildTasks.mtouch.cs:256中的Xamarin.Bundler.AOTTask+c_uuasync1.MoveNext（）[0x001dc]
---来自引发异常的上一个位置的堆栈结束跟踪---
在/private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build root/mono-x64/mcs/class/referencesource/mscorlib/System/Runtime/ExceptionServices/ExceptionServices common.cs:151
在/private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build root/mono-x64/mcs/class/referencesource/mscorlib/System/Runtime/CompilerServices/TaskAwaiter.ThrowForNonSuccess（System.Threading.Tasks.Task任务）[0x00037]中
在/private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build root/mono-x64/mcs/class/referencesource/mscorlib/System/Runtime/compilers-services/taskwaiter.cs:156中的System.Runtime.CompilerServices.taskwaiter.HandleNonSuccessAndDebuggerNotification（System.Threading.Task任务）[00028]中
在/private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build root/mono-x64/mcs/class/referencesource/mscorlib/System/Runtime/CompilerServices/TaskAwaiter.cs:128中的System.Runtime.CompilerServices.taskaiter.ValidateEnd（System.Threading.Tasks.Task任务）[0x00008]
在/private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build root/mono-x64/mcs/class/referencesource/mscorlib/System/Runtime/CompilerServices/taskwaiter.cs:113中的System.Runtime.CompilerServices.taskwaiter.GetResult（）[0x00000]
在/Users/builder/data/lanes/4691/d2270eec/source/Xamarin-macios/tools/common/BuildTasks.cs:247中的Xamarin.Bundler.BuildTask+c_uu-async0.MoveNext（）[0x0024c]
---来自引发异常的上一个位置的堆栈结束跟踪---
在/private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build root/mono-x64/mcs/class/referencesource/mscorlib/System/Runtime/ExceptionServices/ExceptionServices common.cs:151
在/private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build root/mono-x64/mcs/class/referencesource/mscorlib/System/Runtime/CompilerServices/TaskAwaiter.ThrowForNonSuccess（System.Threading.Tasks.Task任务）[0x00037]中
在/private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build root/mono-x64/mcs/class/referencesource/mscorlib/System/Runtime/compilers-services/taskwaiter.cs:156中的System.Runtime.CompilerServices.taskwaiter.HandleNonSuccessAndDebuggerNotification（System.Threading.Task任务）[00028]中
在/private/tmp/source-mono-2017-04/bockbuild-2017-04/profiles/mono-mac-xamarin/build root/mono-x64/mcs/class/referencesource/mscorlib/System/Runtime/CompilerServices/TaskAwaiter.cs:128中的System.Runtime.CompilerServices.taskaiter.ValidateEnd（System.Threading.Tasks.Task任务）[0x00008]
在System.Runtime.CompilerS上