“XamlCTask"Visual Studio for xamarin 上的任务意外失败 [英] The "XamlCTask" task failed unexpectedly on visual studio for xamarin

问题描述

当我尝试在 Visual Studio 上的 Xamarin 上运行应用程序时，出现如下所述的错误，并且无法在设备或模拟器上运行应用程序:

When I am trying to run application on Xamarin on visual studio, I am getting error as mentioned below and not able to run the application on device or emulator:

The "XamlCTask" task failed unexpectedly.
Microsoft.Cci.Pdb.PdbDebugException: Unknown custom metadata item kind: 6
   at Microsoft.Cci.Pdb.PdbFunction.ReadCustomMetadata(BitAccess bits)
   at Microsoft.Cci.Pdb.PdbFunction..ctor(ManProcSym proc, BitAccess bits)
   at Microsoft.Cci.Pdb.PdbFunction.LoadManagedFunctions(BitAccess bits, UInt32 limit, Boolean readStrings)
   at Microsoft.Cci.Pdb.PdbFile.LoadFuncsFromDbiModule(BitAccess bits, DbiModuleInfo info, IntHashTable names, ArrayList funcList, Boolean readStrings, MsfDirectory dir, Dictionary`2 nameIndex, PdbReader reader)
   at Microsoft.Cci.Pdb.PdbFile.LoadFunctions(Stream read, Dictionary`2& tokenToSourceMapping, String& sourceServerData)
   at Mono.Cecil.Pdb.PdbReader.PopulateFunctions()
   at Mono.Cecil.Pdb.PdbReader.ProcessDebugHeader(ImageDebugDirectory directory, Byte[] header)
   at Mono.Cecil.ModuleDefinition.ProcessDebugHeader()
   at Mono.Cecil.ModuleDefinition.ReadSymbols(ISymbolReader reader)
   at Mono.Cecil.ModuleReader.ReadSymbols(ModuleDefinition module, ReaderParameters parameters)
   at Mono.Cecil.ModuleReader.CreateModuleFrom(Image image, ReaderParameters parameters)
   at Mono.Cecil.ModuleDefinition.ReadModule(Stream stream, ReaderParameters parameters)
   at Mono.Cecil.ModuleDefinition.ReadModule(String fileName, ReaderParameters parameters)
   at Xamarin.Forms.Build.Tasks.XamlCTask.Compile()
   at Xamarin.Forms.Build.Tasks.XamlCTask.Execute()
   at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
   at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__1.MoveNext()  MyFirstProject      

在添加这个Xamarin.Forms.Maps"NuGet 包之前，我的应用程序可以工作，但是当我添加这个应用程序时，它突然停止运行并出现错误.

Before adding this "Xamarin.Forms.Maps" NuGet package, my application working but as I have added this suddenly application stops running and getting error.

任何人都可以帮助我导致此类问题的原因是什么?

Anybody could help me what causes this type of issue?

推荐答案

如果您的 Xamarin.Form 版本与您安装的 NuGet 包不兼容/不匹配，则会出现此问题.

This issue arise, if your Xamarin.Form version is not compatible/matching with your NuGet package which you have installed.

因此，我刚刚为 xx.Droid 和 PCL 更新了 Xamarin.Forms，并使依赖项与 NuGet 包匹配.

So, I have just updated Xamarin.Forms for both xx.Droid and PCL and make the match the dependencies with NuGet package.

现在一切正常.希望这对您有用.

Now it is working fine. Hope so this will work for you.

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