xamarin - 将 Android 应用程序升级到 MvvmCross 6.4.1 导致在 Visual Studio 2017 上构建失败

Question

如标题所示，我正在升级现有 Xamarin.Android 项目的依赖项。Android 项目对大部分跨平台代码使用 MvvmCross（我们也支持其他平台）。作为此次升级的一部分，我们将从 MvvmCross 6.2.2 迁移到 6.4.1。

但是，升级库后，在使用 Visual Studio 2017 构建时，项目不再按预期构建。我收到的错误消息如下所示。我试过清洁和重建无济于事。该项目使用 Visual Studio 2019 构建，但出现了奇怪的行为；这甚至在升级我们的依赖项之前就已经发生了。

任何有关解决此问题的可能方法的建议将不胜感激。非常感谢您！

The "LinkAssemblies" task failed unexpectedly.
Java.Interop.Tools.Diagnostics.XamarinAndroidException: error XA2006: Could not resolve reference to 'System.Collections.Generic.Stack`1' (defined in assembly 'MvvmCross, Version=6.4.1.0, Culture=neutral, PublicKeyToken=null') with scope 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e'. When the scope is different from the defining assembly, it usually means that the type is forwarded. ---> Mono.Cecil.ResolutionException: Failed to resolve System.Collections.Generic.Stack`1
   at Mono.Linker.Steps.MarkStep.HandleUnresolvedType(TypeReference reference)
   at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference)
   at MonoDroid.Tuner.MonoDroidMarkStep.MarkType(TypeReference reference)
   at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference)
   at MonoDroid.Tuner.MonoDroidMarkStep.MarkType(TypeReference reference)
   at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference)
   at MonoDroid.Tuner.MonoDroidMarkStep.MarkType(TypeReference reference)
   at Mono.Linker.Steps.MarkStep.InitializeType(TypeDefinition type)
   at Mono.Linker.Steps.MarkStep.InitializeAssembly(AssemblyDefinition assembly)
   at Mono.Linker.Steps.MarkStep.Initialize()
   at MonoDroid.Tuner.MonoDroidMarkStep.Process(LinkContext context)
   at Mono.Linker.Pipeline.Process(LinkContext context)
   at MonoDroid.Tuner.Linker.Process(LinkerOptions options, ILogger logger, LinkContext& context)
   at Xamarin.Android.Tasks.LinkAssemblies.Execute(DirectoryAssemblyResolver res)
   --- End of inner exception stack trace ---
   at Java.Interop.Tools.Diagnostics.Diagnostic.Error(Int32 code, Exception innerException, String message, Object[] args)
   at Xamarin.Android.Tasks.LinkAssemblies.Execute(DirectoryAssemblyResolver res)
   at Xamarin.Android.Tasks.LinkAssemblies.Execute()
   at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
   at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__26.MoveNext() RadResponder.Mobile.UI.Droid            

标签： xamarinxamarin.androidupgrademvvmcrossbuild-error

Answer 1

从 MvvmCross 6.3.1 升级到 MvvmCross 6.4.1 并使用 VS 2017 后，我们也有类似的错误：

未处理的异常：System.TypeLoadException：无法从 typeref 解析带有令牌 01000113 的类型（预期类 'System.Collections.Generic.Stack 1' in assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e') assembly:mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e type:System.Collections.Generic.Stack1 成员：（null）发生

无法使用来自 typeref 的令牌 01000113 解析类型（预期类 'System.Collections.Generic.Stack 1' in assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e') assembly:mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e type:System.Collections.Generic.Stack1 成员：（null）

  at MvvmCross.Platforms.Android.Binding.MvxAndroidBindingBuilder.InitializeContextStack () [0x00000] in D:\a\1\s\MvvmCross\Platforms\Android\Binding\MvxAndroidBindingBuilder.cs:273 
  at MvvmCross.Platforms.Android.Binding.MvxAndroidBindingBuilder.RegisterPlatformSpecificComponents () [0x0000c] in D:\a\1\s\MvvmCross\Platforms\Android\Binding\MvxAndroidBindingBuilder.cs:268 
  at MvvmCross.Binding.MvxCoreBindingBuilder.DoRegistration () [0x00048] in D:\a\1\s\MvvmCross\Binding\MvxCoreBindingBuilder.cs:36 
  at MvvmCross.Binding.MvxBindingBuilder.DoRegistration () [0x00000] in D:\a\1\s\MvvmCross\Binding\MvxBindingBuilder.cs:16 
  at MvvmCross.Platforms.Android.Binding.MvxAndroidBindingBuilder.DoRegistration () [0x00012] in D:\a\1\s\MvvmCross\Platforms\Android\Binding\MvxAndroidBindingBuilder.cs:32 
  at MvvmCross.Platforms.Android.Core.MvxAndroidSetup.InitializeBindingBuilder () [0x0000d] in D:\a\1\s\MvvmCross\Platforms\Android\Core\MvxAndroidSetup.cs:164 
  at MvvmCross.Platforms.Android.Core.MvxAndroidSetup.InitializeLastChance () [0x00006] in D:\a\1\s\MvvmCross\Platforms\Android\Core\MvxAndroidSetup.cs:151 
  at MvvmCross.Core.MvxSetup.InitializeSecondary () [0x0017a] in D:\a\1\s\MvvmCross\Core\MvxSetup.cs:132 
  at MvvmCross.Core.MvxSetupSingleton+<<StartSetupInitialization>b__13_0>d.MoveNext () [0x0001c] in D:\a\1\s\MvvmCross\Core\MvxSetupSingleton.cs:187 
--- End of stack trace from previous location where exception was thrown ---
  at MvvmCross.Core.MvxSetupSingleton.EnsureInitialized () [0x0006e] in D:\a\1\s\MvvmCross\Core\MvxSetupSingleton.cs:116 
  at MvvmCross.Platforms.Android.Views.MvxActivityViewExtensions.EnsureSetupInitialized (MvvmCross.Platforms.Android.Views.IMvxAndroidView androidView) [0x0001c] in D:\a\1\s\MvvmCross\Platforms\Android\Views\MvxActivityViewExtensions.cs:154 
  at MvvmCross.Platforms.Android.Views.MvxActivityViewExtensions.OnViewCreate (MvvmCross.Platforms.Android.Views.IMvxAndroidView androidView, Android.OS.Bundle bundle) [0x00014] in D:\a\1\s\MvvmCross\Platforms\Android\Views\MvxActivityViewExtensions.cs:39 
  at MvvmCross.Platforms.Android.Views.MvxActivityAdapter.EventSourceOnCreateCalled (System.Object sender, MvvmCross.Base.MvxValueEventArgs`1[T] eventArgs) [0x00000] in D:\a\1\s\MvvmCross\Platforms\Android\Views\MvxActivityAdapter.cs:76 
  at (wrapper delegate-invoke) System.EventHandler`1[MvvmCross.Base.MvxValueEventArgs`1[Android.OS.Bundle]].invoke_void_object_TEventArgs(object,MvvmCross.Base.MvxValueEventArgs`1<Android.OS.Bundle>)
  at MvvmCross.Base.MvxDelegateExtensions.Raise[T] (System.EventHandler`1[TEventArgs] eventHandler, System.Object sender, T value) [0x00000] in D:\a\1\s\MvvmCross\Base\MvxDelegateExtensions.cs:18 
  at MvvmCross.Droid.Support.V7.AppCompat.EventSource.MvxEventSourceAppCompatActivity.OnCreate (Android.OS.Bundle bundle) [0x00014] in D:\a\1\s\MvvmCross.Android.Support\V7.AppCompat\EventSource\MvxEventSourceAppCompatActivity.cs:33 
  at MvvmCross.Droid.Support.V7.AppCompat.MvxAppCompatActivity.OnCreate (Android.OS.Bundle bundle) [0x00000] in D:\a\1\s\MvvmCross.Android.Support\V7.AppCompat\MvxAppCompatActivity.cs:88 
  at ITG.Brix.Mobile.EOrder.Views.Activities.LoginActivity.OnCreate (Android.OS.Bundle bundle) [0x00002] in C:\Projects\Git\native-eorder\ITG.Brix.Mobile.EOrder\Views\Activities\LoginActivity.cs:25