Skywalking 8.x 在.NET core 3.1 的錯誤 導致服務執行緒崩潰
兄弟，在.NET CORE 3.1 使用skywalking 的時候 有沒遇到這樣問題的？
問題描述如下：
版本：
SkyAPM ASP.NET Core Agent. 1.3.0
SkyAPM.Diagnostics.AspNetCore notifies Web Http requests. 1.3.0
Microsoft.Utilities.DependencyInjection (IServiceCollection) support for SkyAPM. 1.3.0
環境變數：
Application: dotnet.exe CoreCLR Version: 4.6.27414.5 Description:
The process was terminated due to an unhandled exception. Exception Info:
System.Threading.Tasks.TaskCanceledException: A task was canceled.
at SkyApm.Service.RegisterService.Polling(Int32 retry, Func`1 execute, CancellationToken cancellationToken)
at SkyApm.Service.RegisterService.RegisterServiceAsync(CancellationToken cancellationToken)
at SkyApm.Service.RegisterService.ExecuteAsync(CancellationToken cancellationToken)
at SkyApm.ExecutionService.Callback(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location where exception was thrown --- at System.Threading.ThreadPoolWorkQueue.Dispatch()</