Xamarin Studio：首选项>；项目>；SDK位置>；苹果>&引用；Xamarin.iOS SDK“；盒子？

在“首选项>项目>SDK位置>苹果>Xamarin.iOS SDK”框中，您应该放置什么

当我将其留空时，我会看到一个绿色的复选框，表示它找到了位置。但是，当我尝试打开一个项目时，我会得到：

System.NotSupportedException: Could not parse iOS version from SDK path: Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk
  at MonoTouch.Hosting.IosSystem..ctor (System.String sdkPath, DeviceTrait device, MonoTouch.Hosting.Capabilities capabilities) [0x000f4] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/md-addins/Xamarin.Designer.iOS/MonoTouch.Hosting/IosSystem.cs:184 
  at MonoTouch.Hosting.IosSystem..ctor (System.String sdkPath, DeviceTrait device) [0x00000] in <filename unknown>:0 
  at MonoTouch.Design.Client.PooledConnectionProvider+<GetConnection>c__AnonStorey51.<>m__10B () [0x00021] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/md-addins/Xamarin.Designer.iOS/MonoTouch.Design.Client/Connection/PooledConnectionProvider.cs:33 
  at MonoTouch.Design.Client.PooledConnectionProvider+Pool.Acquire () [0x00000] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/md-addins/Xamarin.Designer.iOS/MonoTouch.Design.Client/Connection/PooledConnectionProvider.cs:97 
  at MonoTouch.Design.Client.PooledConnectionProvider+Pool..ctor (Int32 count, System.Func`1 acquire) [0x00020] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/md-addins/Xamarin.Designer.iOS/MonoTouch.Design.Client/Connection/PooledConnectionProvider.cs:81 
  at MonoTouch.Design.Client.PooledConnectionProvider.GetConnection (DeviceTrait device) [0x0003d] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/md-addins/Xamarin.Designer.iOS/MonoTouch.Design.Client/Connection/PooledConnectionProvider.cs:29 
  at MonoTouch.Design.Client.IPhoneDesignerService.PrefillConnectionPool (System.String sdkPath, TargetDevice projectTargetDevice) [0x0001a] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/md-addins/Xamarin.Designer.iOS/MonoTouch.Design.Client/IPhoneDesignerService.cs:82 
  at MonoTouch.Design.Client.IPhoneDesignerService.IncrementOpenProjectCount (System.String sdkPath, Int32 projectTargetDevice) [0x0004c] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/md-addins/Xamarin.Designer.iOS/MonoTouch.Design.Client/IPhoneDesignerService.cs:102 
  at MonoDevelop.IPhone.IPhoneProject.OnEndLoad () [0x0003c] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/md-addins/MonoDevelop.IPhone/MonoDevelop.IPhone/Project/IPhoneProject.cs:275 
  at MonoDevelop.Projects.SolutionItem.MonoDevelop.Projects.ILoadController.EndLoad () [0x0000e] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/SolutionItem.cs:877 
  at MonoDevelop.Projects.Extensions.LoadOperation.End () [0x00019] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects.Extensions/ProjectExtensionUtil.cs:138 
  at MonoDevelop.Projects.Extensions.ProjectExtensionUtil.EndLoadOperation () [0x00042] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects.Extensions/ProjectExtensionUtil.cs:85 
  at MonoDevelop.Projects.Formats.MSBuild.SlnFileFormat.ReadFile (System.String fileName, MonoDevelop.Projects.Formats.MSBuild.MSBuildFileFormat format, IProgressMonitor monitor) [0x0006e] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects.Formats.MSBuild/SlnFileFormat.cs:652 
  at MonoDevelop.Projects.Formats.MSBuild.MSBuildFileFormat.ReadFile (FilePath file, System.Type expectedType, IProgressMonitor monitor) [0x00017] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects.Formats.MSBuild/MSBuildFileFormat.cs:166 
  at MonoDevelop.Projects.ProjectService.ReadFile (IProgressMonitor monitor, System.String file, System.Type expectedType, MonoDevelop.Projects.FileFormat& format) [0x0002d] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectService.cs:310 
  at MonoDevelop.Projects.ProjectService.InternalReadWorkspaceItem (System.String file, IProgressMonitor monitor) [0x00000] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectService.cs:282 
  at MonoDevelop.Projects.DefaultProjectServiceExtension.LoadWorkspaceItem (IProgressMonitor monitor, System.String fileName) [0x00000] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectService.cs:677 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadWorkspaceItem (IProgressMonitor monitor, System.String fileName) [0x00000] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:108 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadWorkspaceItem (IProgressMonitor monitor, System.String fileName) [0x00000] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:108 
  at MonoDevelop.Autotools.MakefileProjectServiceExtension.LoadWorkspaceItem (IProgressMonitor monitor, System.String fileName) [0x00000] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/addins/MonoDevelop.Autotools/MakefileProjectServiceExtension.cs:48 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadWorkspaceItem (IProgressMonitor monitor, System.String fileName) [0x00000] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:108 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadWorkspaceItem (IProgressMonitor monitor, System.String fileName) [0x00000] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:108 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadWorkspaceItem (IProgressMonitor monitor, System.String fileName) [0x00000] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:108 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadWorkspaceItem (IProgressMonitor monitor, System.String fileName) [0x00000] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:108 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadWorkspaceItem (IProgressMonitor monitor, System.String fileName) [0x00000] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:108 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadWorkspaceItem (IProgressMonitor monitor, System.String fileName) [0x00000] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:108 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadWorkspaceItem (IProgressMonitor monitor, System.String fileName) [0x00000] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:108 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadWorkspaceItem (IProgressMonitor monitor, System.String fileName) [0x00000] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:108 
  at MonoDevelop.Projects.ProjectService.ReadWorkspaceItem (IProgressMonitor monitor, System.String file) [0x00027] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectService.cs:261 
  at MonoDevelop.Ide.RootWorkspace.BackgroundLoadWorkspace (IProgressMonitor monitor, System.String filename, Boolean loadPreferences, Boolean reloading) [0x00163] in /Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide/RootWorkspace.cs:593 

System.NotSupportedException:无法从SDK路径分析iOS版本：Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.SDK
在/Users/builder/data/lanes/monodevelop\u private-lion-splash2/33f01126/source/md addins/Xamarin.Designer.iOS/MonoTouch.Hosting/IosSystem.Capabilities中的MonoTouch.Hosting.IosSystem..ctor（System.String sdkPath，DeviceTrait device，MonoTouch.Capabilities）[0x000f4]处
在MonoTouch.Hosting.IosSystem..ctor（System.String sdkPath，DeviceTrait device）[0x00000]中：0
在/Users/builder/data/lanes/monodevelop\u private-lion-splash2/33f01126/source/md addins/Xamarin.Designer.iOS/MonoTouch.Design.Client/Connection/PooledConnectionProvider.cs:33中的monotou.Designer.m\uu anostorey51.m\uu 10B（）[0x00021]
在/Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/md addins/Xamarin.Designer.iOS/MonoTouch.Design.Client/Connection/PooledConnectionProvider.cs:97中的MonoTouch.Design.Client.PooledConnectionProvider+Pool.Acquire（）[0x00000]
在/Users/builder/data/lanes/monodevelopment\u private-lion-splash2/33f01126/source/md addins/Xamarin.Designer.iOS/MonoTouch.Design.Client/Connection/PooledConnectionProvider.cs:81中的MonoTouch.Design.Client.Func`1 acquire[0x00020]
在/Users/builder/data/lanes/monodevelop\u private-lion-splash2/33f01126/source/md addins/Xamarin.Designer.iOS/MonoTouch.Design.Client/Connection/PooledConnectionProvider.cs:29中的MonoTouch.Design.Client.Client.Client.PooledConnectionProvider.GetConnection（DeviceTrait device）[0x0003d]
在/Users/builder/data/lanes/monodevelopment\u private-lion-splash2/33f01126/source/md addins/Xamarin.Designer.iOS/MonoTouch.Designer.cs:82中的MonoTouch.Design.Client.Client.IPhoneDesignerService.PrefillConnectionPool（System.String-sdkPath，TargetDevice项目TargetDevice设备）[0x0001a]
在/Users/builder/data/lanes/monodevelopment\u private-lion-splash2/33f01126/source/md addins/Xamarin.Designer.iOS/MonoTouch.Designer.cs:102中的MonoTouch.Design.Client.Client.IPhoneDesignerService.IncrementOpenProjectCount（System.String sdkPath，Int32 projectTargetDevice）[0x0004c]
位于/Users/builder/data/lanes/monodevel_private-lion-splash2/33f01126/source/md addins/monodevel.IPhone/MonoDevelop.IPhone/IPhoneProject.cs:275中的MonoDevelop.IPhone.IPhoneProject.OnEndLoad（）[0x0003c]
在/Users/builder/data/lanes/monodevel_private-lion-splash2/33f01126/source/MonoDevelop/main/src/core/MonoDevelop.core/MonoDevelop.Projects/SolutionItem.cs:877中的MonoDevelop.Projects.SolutionItem.MonoDevelop.Projects.ILoadController.EndLoad（）[0x0000e]
在/Users/builder/data/lanes/MonoDevelop_private-lion-splash2/33f01126/source/MonoDevelop/main/src/core/MonoDevelop.core/MonoDevelop.Projects.Extensions/ProjectExtensionUtil.cs:138中的MonoDevelop.Projects.Extensions.Extensions
在/Users/builder/data/lanes/MonoDevelop_private-lion-splash2/33f01126/source/MonoDevelop/main/src/core/MonoDevelop.core/MonoDevelop.Projects.Extensions/ProjectExtensionUtil.cs:85中的monodevel.Projects.Extensions.Extensions.Extensions.Extensions.Extensions.Extensions.Extensions
位于MonoDevelop.Projects.Formats.MSBuild.SlnFileFormat.ReadFile（System.String文件名，MonoDevelop.Projects.Formats.MSBuild.MSBuildFileFormat，IProgressMonitor监视器）[0x0006e]在/Users/builder/data/lanes/monodevelop_private-lion-splash2/33f01126/source/monodevelop/main/src/core/monodevelop.core/monodevelop.Projects.Formats.MSBuild/SlnFileFormat.cs:652中
在/Users/builder/data/lanes/monodevel\u private-lion-splash2/33f01126/source/MonoDevelop/main/src/core/MonoDevelop.core/MonoDevelop.core/MonoDevelop.Projects.Formats.cs:166中的MonoDevelop.Projects.Formats.MSBuild.Formats.MSBuild\private-lion-splash2.MSBuild.MSBuildFileFormat.ReadFile（文件路径文件，System.Type-expectedType，IProgreats
在/Users/builder/data/lanes/MonoDevelop_private-lion-splash2/33f01126/source/MonoDevelop/main/src/core/MonoDevelop.Projects/ProjectService.cs:310中的MonoDevelop.Projects.ProjectService.ReadFile（IProgressMonitor监视器，System.String文件，System.Type预期类型，MonoDevelop.Projects.FileFormat&format）[0x0002d]
在/Users/builder/data/lanes/monodelove\u private-lion-splash2/33f01126/source/monodelove/main/src/core/monodelove.core/monodelove.Projects/ProjectService.cs:282中的monodelove.Projects.Projects.ProjectService.InternalReadWorkspaceItem（System.String文件，IProgressMonitor监视器）[][0x00000]中
在/Users/builder/data/lanes/MonoDevelop\u private-lion-splash2/33f01126/source/MonoDevelop/main/src/core/MonoDevelop.core/MonoDevelop.ProjectService.cs:677中的MonoDevelop.Projects.DefaultProjectServiceExtension.LoadWorkspaceItem（IProgressMonitor，System.String文件名）[0x00000]中
在/Users/builder/data/lanes/MonoDevelop\u private-lion-splash2/33f01126/source/MonoDevelop/main/src/core/MonoDevelop.core/MonoDevelop.core/MonoDevelop.Projects/ProjectServiceExtension.cs:108中的MonoDevelop.Projects.Projects.ProjectServiceExtension.LoadWorkspaceItem（IProgressMonitor，System.String文件名）[
在/Users/builder/data/lanes/MonoDevelop\u private-lion-splash2/33f01126/source/MonoDevelop/main/src/core/MonoDevelop.core/MonoDevelop.core/MonoDevelop.Projects/ProjectServiceExtension.cs:108中的MonoDevelop.Projects.Projects.ProjectServiceExtension.LoadWorkspaceItem（IProgressMonitor，System.String文件名）[
在/Users/builder/data/lanes/MonoDevelop_private-lion-s中的MonoDevelop.Autotools.MakefileProjectServiceExtension.LoadWorkspaceItem（IProgressMonitor监视器，System.String文件名）[0x00000]处