我有一个令人烦恼的问题,如果我只在Xamarin Studio中使用Link SDK Assemblies,我会遇到异常,如果我不链接,异常就不会发生。我已经确定这个问题是我正在使用的第三方dll的一部分(用于视频流服务的API)。我相信链接器正在剥离此dll使用的某些方法。 是否可以跳过某些库的链接,并且是否可以从堆栈跟踪中看到哪些是被剥离的。
2013-05-08 14:40:54.688 AppsfabrikkenTouch[5662:907] mvx: Diagnostic: 18,23 Exception masked NullReferenceException: Object reference not set to an instance of an object
at System.Delegate.Combine (System.Delegate a, System.Delegate b) [0x00018] in /Developer/MonoTouch/Source/mono/mcs/class/corlib/System/Delegate.cs:473
at Cirrious.MvvmCross.ViewModels.MvxNotifyPropertyChanged.add_PropertyChanged (System.ComponentModel.PropertyChangedEventHandler value) [0x00000] in <filename unknown>:0
at Cirrious.MvvmCross.Binding.Bindings.Source.MvxBasePropertyInfoSourceBinding..ctor (System.Object source, System.String propertyName) [0x00000] in <filename unknown>:0
at Cirrious.MvvmCross.Binding.Bindings.Source.MvxPropertyInfoSourceBinding..ctor (System.Object source, System.String propertyName) [0x00000] in <filename unknown>:0
at Cirrious.MvvmCross.Binding.Bindings.Source.Construction.MvxSourceBindingFactory.CreateBinding (System.Object source, IEnumerable`1 childPropertyNames) [0x00000] in <filename unknown>:0
at Cirrious.MvvmCross.Binding.Bindings.Source.Construction.MvxSourceBindingFactory.CreateBinding (System.Object source, System.String combinedPropertyName) [0x00000] in <filename unknown>:0
at Cirrious.MvvmCross.Binding.Binders.MvxFullBinding.CreateSourceBinding (System.Object source) [0x00000] in <filename unknown>:0
at Cirrious.MvvmCross.Binding.Binders.MvxFullBinding..ctor (Cirrious.MvvmCross.Binding.Interfaces.MvxBindingRequest bindingRequest) [0x00000] in <filename unknown>:0
at Cirrious.MvvmCross.Binding.Binders.MvxFromTextBinder.BindSingle (Cirrious.MvvmCross.Binding.Interfaces.MvxBindingRequest bindingRequest) [0x00000] in <filename unknown>:0
at Cirrious.MvvmCross.Binding.Binders.MvxFromTextBinder+<>c__DisplayClass1.<Bind>b__0 (Cirrious.MvvmCross.Binding.Interfaces.MvxBindingDescription description) [0x00000] in <filename unknown>:0
at System.Linq.Enumerable+<CreateSelectIterator>c__Iterator1D`2[Cirrious.MvvmCross.Binding.Interfaces.MvxBindingDescription,Cirrious.MvvmCross.Binding.Interfaces.IMvxUpdateableBinding].MoveNext () [0x00000] in <filename unknown>:0
at System.Collections.Generic.List`1[Cirrious.MvvmCross.Binding.Interfaces.IMvxUpdateableBinding].AddEnumerable (IEnumerable`1 enumerable) [0x00000] in <filename unknown>:0
at System.Collections.Generic.List`1[Cirrious.MvvmCross.Binding.Interfaces.IMvxUpdateableBinding].AddRange (IEnumerable`1 collection) [0x00000] in <filename unknown>:0
at Cirrious.MvvmCross.Binding.Touch.ExtensionMethods.MvxBindingTouchExtensions.AddBindings (IMvxBindingTouchView view, IEnumerable`1 bindings) [0x00000] in <filename unknown>:0
at Cirrious.MvvmCross.Binding.Touch.ExtensionMethods.MvxBindingTouchExtensions.AddBindings (IMvxBindingTouchView view, System.Object source, System.Object target, System.String bindingText) [0x00000] in <filename unknown>:0
at Cirrious.MvvmCross.Binding.Touch.ExtensionMethods.MvxBindingTouchExtensions.AddBindings (IMvxBindingTouchView view, System.Object source, IDictionary`2 bindingMap) [0x00000] in <filename unknown>:0
at Cirrious.MvvmCross.Binding.Touch.ExtensionMethods.MvxBindingTouchExtensions.AddBindings (IMvxBindingTouchView view, IDictionary`2 bindingMap) [0x00000] in <filename unknown>:0
at CmsApp.Touch.TabTextView.ViewDidLoad () [0x00074] in /Volumes/2end HDD/Dropbox/AppProjects/Appsfabrikken/CmsApp.Touch/Views/UmbracoViews/TabTextView.cs:45
at MonoTouch.UIKit.UINavigationController.PushViewController (MonoTouch.UIKit.UIViewController viewController, Boolean animated) [0x00019] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UINavigationController.g.cs:178
at CmsApp.Touch.AppPhonePresenter.Show (IMvxTouchView view) [0x0007b] in /Volumes/2end HDD/Dropbox/AppProjects/Appsfabrikken/CmsApp.Touch/AppPhonePresenter.cs:62
at Cirrious.MvvmCross.Touch.Views.Presenters.MvxTouchViewPresenter.Show (Cirrious.MvvmCross.Views.MvxShowViewModelRequest request) [0x00000] in <filename unknown>:0
at CmsApp.Touch.AppPhonePresenter.Show (Cirrious.MvvmCross.Views.MvxShowViewModelRequest request) [0x00000] in /Volumes/2end HDD/Dropbox/AppProjects/Appsfabrikken/CmsApp.Touch/AppPhonePresenter.cs:37
at Cirrious.MvvmCross.Touch.Views.MvxTouchViewDispatcher+<>c__DisplayClass1.<RequestNavigate>b__0 () [0x00000] in <filename unknown>:0
at Cirrious.MvvmCross.Touch.Views.MvxTouchUIThreadDispatcher+<>c__DisplayClass1.<InvokeOrBeginInvoke>b__0 () [0x00000] in <filename unknown>:0
非常感谢您的帮助。
更新: 根据斯图尔特(谢谢斯图尔特)的建议,我添加了一个名为LinkerPleaseInclude的文件,并包含了以下内容:但仍然出现异常。
class LinkerIncludePlease
{
private void DelegateCombine(Delegate a, Delegate b)
{
var d = Delegate.Combine(a,b);
}
private void DelegateCombine(params Delegate[] delegates)
{
var d = Delegate.Combine(delegates);
}
private void DelegateCombine()
{
var d = Delegate.Combine();
}
}
我的想法是它必须与堆栈跟踪有关
Exception masked NullReferenceException: Object reference not set to an instance of an object
at System.Delegate.Combine (System.Delegate a, System.Delegate b) [0x00018]
但是它似乎并没有起到作用 - 有什么提示可以找出被剥离的内容吗?