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我正在使用MonoTouch 4.2.1与MonoDevelop 2.8 Beta 2和XCode 4。我们正试图通过slsvcutil代理生成器生成的类调用.Net Web服务方法。MonoTouch 4.2不支持在设备上运行时的System.ServiceModel.EndpointAddress（）（适用于模拟器）
在iPhone模拟器上测试应用程序时，代码正在工作，我们成功连接到服务器并发送Web服务请求。
但是，当在设备上测试应用程序（iPhone 4与iOS 4.3.5）时，应用程序在调用System.ServiceModel.EndpointAddress（）构造函数时无法连接到服务器。
请注意，它在MonoTouch 4.0.7上正常工作。
我们得到的错误：
Attempting to JIT compile method 'System.Linq.Enumerable:FirstOrDefault<System.ServiceModel.Description.OperationDescription> (System.Collections.Generic.IEnumerable`1<System.ServiceModel.Description.OperationDescription>,System.Func`2<System.ServiceModel.Description.OperationDescription, bool>)' while running with --aot-only.
它似乎以下行崩溃：
new System.ServiceModel.EndpointAddress(
string.Format(System.Globalization.CultureInfo.InvariantCulture, "http://{0}:{1}/Dartfish/RemoteControlServices/",
address, port)));
错误堆栈：
[ERROR] FATAL UNHANDLED EXCEPTION: System.ExecutionEngineException: Attempting to JIT compile method
'System.Linq.Enumerable:FirstOrDefault<System.ServiceModel.Description.OperationDescription> (System.Collections.Generic.IEnumerable`1<System.ServiceModel.Description.OperationDescription>,System.Func`2 System.ServiceModel.Description.OperationDescription, bool)' while running with --aot-only.
at System.ServiceModel.Description.ContractDescriptionGenerator.GetOrCreateOperation (System.ServiceModel.Description.ContractDescription cd, System.Reflection.MethodInfo mi, System.Reflection.MethodInfo serviceMethod, System.ServiceModel.OperationContractAttribute oca, System.Type asyncReturnType, Boolean isCallback, System.Type givenServiceType)
at System.ServiceModel.Description.ContractDescriptionGenerator.FillOperationsForInterface (System.ServiceModel.Description.ContractDescription cd, System.Type exactContractType, System.Type givenServiceType, Boolean isCallback)
at System.ServiceModel.Description.ContractDescriptionGenerator.GetContractInternal (System.Type givenContractType, System.Type givenServiceType, System.Type serviceTypeForCallback)
at System.ServiceModel.Description.ContractDescriptionGenerator.GetContract (System.Type givenContractType, System.Type givenServiceType, System.Type serviceTypeForCallback)
at System.ServiceModel.Description.ContractDescriptionGenerator.GetContract (System.Type givenContractType, System.Type givenServiceType)
at System.ServiceModel.Description.ContractDescriptionGenerator.GetContract (System.Type contractType)
at System.ServiceModel.Description.ContractDescription.GetContract (System.Type contractType)
at System.ServiceModel.ChannelFactory`1[ICommandMgr].CreateDescription()
m.ServiceModel.ChannelFactory`1[ICommandMgr]..ctor (System.Type type)
at System.ServiceModel.ChannelFactory`1[ICommandMgr]..ctor (System.ServiceModel.Channels.Binding binding, System.ServiceModel.EndpointAddress remoteAddress)
at System.ServiceModel.ClientBase`1[ICommandMgr].Initialize (System.ServiceModel.InstanceContext instance, System.ServiceModel.Channels.Binding binding, System.ServiceModel.EndpointAddress remoteAddress)
at System.ServiceModel.ClientBase`1[ICommandMgr]..ctor (System.ServiceModel.InstanceContext instance, System.ServiceModel.Channels.Binding binding, System.ServiceModel.EndpointAddress remoteAddress)
at System.ServiceModel.ClientBase`1[ICommandMgr]..ctor (System.ServiceModel.Channels.Binding binding, System.ServiceModel.EndpointAddress remoteAddress)
at CommandMgrClient..ctor (System.ServiceModel.Channels.
at Dartfish.ViewModel.RemoteControlViewModel.ProxyTransportViewModel.DoCommandMgrOpenAsync (System.String address, Int32 port)
这是唐“T似乎是编译器问题，因为编译器选项应该是“仅链接SDK程序集”。 有人知道如何解决这个崩溃问题，或者是否有新的MonoTouch限制/最后一个MonoTouch版本中的错误？
我不能用**“new System.ServiceModel.EndpointAddress（...）”**重复该问题。请填写http://bugzilla.xamarin.com上的错误报告，并包含一个小型自包含的测试用例来说明问题。谢谢 – poupou
报告错误：http://bugzilla.xamarin.com/show_bug.cgi?id=1053 – Nicolas
我试图再次重新安装MonoTouch 4.2.1，它现在工作正常。对不起，花时间！ – Nicolas