android - "LinkAssemblies"任务在 Release模式下构建解决方案时意外失败

Question

我的项目在 Debug 模式下成功构建，但是当我将其更改为 Release 模式时；出现以下异常:

Severity    Code    Description Project File    Line    Suppression State 
    Error       The "LinkAssemblies" task failed 
    unexpectedly.Java.Interop.Tools.Diagnostics.XamarinAndroidException: error 
    XA2006: Could not resolve reference to 'Android.Views.KeyboardShortcutGroup' 
    (defined in assembly 'Xamarin.Android.Support.v7.AppCompat, 
    Version=1.0.0.0,Culture=neutral, PublicKeyToken=null') with scope 
    'Mono.Android,Version=0.0.0.0, 
    Culture=neutral,PublicKeyToken=84e04ff9cfb79065'.When the scope is 
    differentfromthe defining assembly, it usually means that the type is 
    forwarded.---> Mono.Cecil.ResolutionException: Failed to 
    resolveAndroid.Views.KeyboardShortcutGroup   
    at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference)   
    at MonoDroid.Tuner.MonoDroidMarkStep.MarkType(TypeReference reference)   
    at Mono.Linker.Steps.MarkStep.MarkGenericArguments(IGenericInstance 
    instance) 
    at Mono.Linker.Steps.MarkStep.GetOriginalType(TypeReference type)
    at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference)
    at MonoDroid.Tuner.MonoDroidMarkStep.MarkType(TypeReference reference)
    at Mono.Linker.Steps.MarkStep.MarkMethodBody(MethodBody body)
    at Mono.Linker.Steps.MarkStep.ProcessMethod(MethodDefinition method)
    at Mono.Linker.Steps.MarkStep.ProcessQueue()
    at Mono.Linker.Steps.MarkStep.Process()
    at Mono.Linker.Steps.MarkStep.Process(LinkContext context)
    at Mono.Linker.Pipeline.Process(LinkContext context)
    at MonoDroid.Tuner.Linker.Run(Pipeline pipeline, LinkContext context)
    at MonoDroid.Tuner.Linker.Process(LinkerOptions options, 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()   

Answer 1

您可能需要将目标 android 版本(在使用 Android 版本编译下的 Android 项目属性中)增加到 API 24，因为直到 API 24 才引入 KeyboardShortcutGroup。