无法在Visual Studio Mac中构建（以前是Xamarin）
没有任何建立或清理。甚至不是控制台应用程序。我在macOS 10.12.6上使用的是7.1.5版。
我卸载并重新安装并仍然存在同样的问题。
Error: Build failed. See the build log for details.
这是构建日志中的错误：
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /private/tmp/source-mono-d15-3/bockbuild-d15-3/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-d15-3/bockbuild-d15-3/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-d15-3/bockbuild-d15-3/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-d15-3/bockbuild-d15-3/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () [0x00000] in /private/tmp/source-mono-d15-3/bockbuild-d15-3/profiles/mono-mac-xamarin/build-root/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:535
at MonoDevelop.Projects.Project+<>c__DisplayClass142_1+<<RunMSBuildTarget>b__0>d.MoveNext () [0x00113] in /Users/builder/data/lanes/5123/7afedcae/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/Project.cs:1200
--- End of stack trace from previous location where exception was thrown ---
UPDATE1：
这只发生在我使用Proxifier版本2.21时
http://www.proxifier.com/mac/
UPDATE2： 这里提到了一个错误：https://bugzilla.xamarin.com/show_bug.cgi?id=60008 还联系了proxifier。