这是我从Vs代码开始调试Asp.Net后得到的错误：
Unhandled Exception: System.IO.FileLoadException: Could not load file or assembly 'System.ComponentModel.Primitives, Version=4.2.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
at Microsoft.Extensions.FileProviders.PhysicalFileProvider.CreateFileWatcher(String root)
at Microsoft.Extensions.FileProviders.PhysicalFileProvider..ctor(String root)
at Microsoft.AspNetCore.Hosting.Internal.HostingEnvironmentExtensions.Initialize(IHostingEnvironment hostingEnvironment, String applicationName, String contentRootPath, WebHostOptions options)
at Microsoft.AspNetCore.Hosting.WebHostBuilder.BuildCommonServices(AggregateException& hostingStartupErrors)
at Microsoft.AspNetCore.Hosting.WebHostBuilder.Build()
at Api.Program.BuildWebHost(String[] args)
at Api.Program.Main(String[] args)
使用dotnet run启动应用时，我没有收到此错误。
在dotnet v2.0.0上运行