时间戳

首页 > 解决方案 > 错误 MSB4018 - 发布构建时“LinkAssemblies”任务意外失败

android - 错误 MSB4018 - 发布构建时“LinkAssemblies”任务意外失败

问题描述

经过八个小时的尝试调试和解决此问题，我来到了与您联系的地步。我在网上搜索以找到解决方案，但如果它似乎有效，则没有。

我正在使用 Xamarin.Forms 3.3.0.912540 在 Visual Studio Enterprise 2017 v. 15.8.7 中构建一个 Android 应用程序。目标框架设置为 8.1 (Oreo)。当我将链接（在 Android 选项/链接器属性中）设置为 SDK 和用户程序集时，它会构建项目。但是，当我尝试将其设置为 SDK Assemblies Only 时，我收到以下错误：

Error       The "LinkAssemblies" task failed unexpectedly.
Mono.Linker.MarkException: Error processing method: 'System.Void Xamarin.Forms.Pages.BaseDataSource/<Initialize>d__22::MoveNext()' in assembly: 'Xamarin.Forms.Pages.dll' ---> Mono.Cecil.ResolutionException: Failed to resolve System.Void Xamarin.Forms.Log::Warning(System.String,System.String)
   at Mono.Linker.Steps.MarkStep.HandleUnresolvedMethod(MethodReference reference)
   at Mono.Linker.Steps.MarkStep.MarkMethod(MethodReference reference)
   at Mono.Linker.Steps.MarkStep.MarkInstruction(Instruction instruction)
   at Mono.Linker.Steps.MarkStep.MarkMethodBody(MethodBody body)
   at Mono.Linker.Steps.MarkStep.ProcessMethod(MethodDefinition method)
   at Mono.Linker.Steps.MarkStep.ProcessQueue()
   --- End of inner exception stack trace ---
   at Mono.Linker.Steps.MarkStep.ProcessQueue()
   at Mono.Linker.Steps.MarkStep.ProcessPrimaryQueue()
   at Mono.Linker.Steps.MarkStep.Process()
   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)
   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() Projectname.Android

2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018: The "LinkAssemblies" task failed unexpectedly.
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018: Mono.Linker.MarkException: Error processing method: 'System.Void Xamarin.Forms.Pages.BaseDataSource/<Initialize>d__22::MoveNext()' in assembly: 'Xamarin.Forms.Pages.dll' ---> Mono.Cecil.ResolutionException: Failed to resolve System.Void Xamarin.Forms.Log::Warning(System.String,System.String)
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at Mono.Linker.Steps.MarkStep.HandleUnresolvedMethod(MethodReference reference)
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at Mono.Linker.Steps.MarkStep.MarkMethod(MethodReference reference)
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at Mono.Linker.Steps.MarkStep.MarkInstruction(Instruction instruction)
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at Mono.Linker.Steps.MarkStep.MarkMethodBody(MethodBody body)
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at Mono.Linker.Steps.MarkStep.ProcessMethod(MethodDefinition method)
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at Mono.Linker.Steps.MarkStep.ProcessQueue()
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    --- End of inner exception stack trace ---
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at Mono.Linker.Steps.MarkStep.ProcessQueue()
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at Mono.Linker.Steps.MarkStep.ProcessPrimaryQueue()
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at Mono.Linker.Steps.MarkStep.Process()
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at MonoDroid.Tuner.MonoDroidMarkStep.Process(LinkContext context)
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at Mono.Linker.Pipeline.Process(LinkContext context)
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at MonoDroid.Tuner.Linker.Process(LinkerOptions options, ILogger logger, LinkContext& context)
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at Xamarin.Android.Tasks.LinkAssemblies.Execute(DirectoryAssemblyResolver res)
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at Xamarin.Android.Tasks.LinkAssemblies.Execute()
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2053,5): error MSB4018:    at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__26.MoveNext()

我尝试了多种方法来解决这个问题，比如重新安装~~~~Android SDK，更改目标框架（Android 9.0、Android 8.0、Android 7.0），将 Xamarin.Forms 版本更改为 2.5.1.527436。删除 bin 和 obj 文件夹中的所有文件并尝试使用跳过链接程序集。我什至尝试注释掉我的一些代码并将 ProGuard、AOT 编译和捆绑程序集设置为本机代码。我还尝试删除引用并将它们放回原处。

这让我快疯了。我不想在设置为 None 的情况下构建应用程序（这当然可以，但 .apk 会太大）。

有人可以就这个问题给我建议吗？

亲切的问候， Civart

标签： androidxamarinxamarin.formsxamarin.android

解决方案

好的，伙计们，我为所有可能面临同样问题的人保留这篇文章。

我像 Jon Douglas 所说的那样检查了每个版本（主项目和 Android 项目）。有些不匹配，所以我恢复了这个。虽然这并没有解决问题，但似乎 Xamarin.Forms.Pages 没有在两个项目中安装，所以我安装了它们（两者具有相同的版本）。现在它起作用了！

推荐阅读