如何解决网页未显示在blazor应用程序上
我在Visual Studio 2019中创建了示例Blazor应用程序。
我运行了该应用程序，它运行良好。
我如下更改了index.razor页面：
@page "/"
<h1>Hello,world!</h1>
Welcome to your new app.
<SurveyPrompt Title="How is Blazor working for you? yes" />
我再次运行该应用程序，但是这次新的Web浏览器（chrome）启动并停留在加载页面中。屏幕上没有任何显示。
我打开了一个chrome窗口，并将现在显示chrome窗口的地址复制并粘贴到新的chrome窗口中，并且它可以正常工作。
我在Chrome中打开了一个新标签页，该标签页已打开，但未显示任何内容，并得到了相同的结果。
我该如何解决？
编辑1
在我开始调试应用程序时VS打开的浏览器上，我可以看到：
如果我打开Chrome浏览器，然后输入地址，就会得到以下提示：
我检查了一下，两个浏览器上的地址是相同的。
Verbose logs are written to:
C:\Users\Mansour\AppData\Local\Temp\vscode-chrome-debug.txt
'iisexpress.exe' (CoreCLR: DefaultDomain): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Private.CoreLib.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'D:\MyData\TestCode\BlazorApp1\BlazorApp1\Server\bin\Debug\netcoreapp3.1\BlazorApp1.Server.dll'. Symbols loaded.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Runtime.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Server.IIS.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Runtime.Extensions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Hosting.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Hosting.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Hosting.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Configuration.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.DependencyInjection.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.DependencyInjection.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Logging.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Collections.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\netstandard.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.ComponentModel.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.IO.FileSystem.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Hosting.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Configuration.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Configuration.Environmentvariables.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Primitives.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Threading.Tasks.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Linq.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Threading.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Server.Kestrel.Core.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Server.Kestrel.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Runtime.InteropServices.Runtimeinformation.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Server.IISIntegration.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Configuration.CommandLine.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Mvc.Core.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.FileProviders.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.FileProviders.Physical.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\system.memory.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Configuration.FileExtensions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Configuration.Json.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Configuration.UserSecrets.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Runtime.InteropServices.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Configuration.Binder.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Private.Uri.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Http.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.FileProviders.Composite.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Xml.XDocument.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Private.Xml.Linq.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Private.Xml.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Threading.Thread.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Security.Cryptography.Algorithms.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Text.Encoding.Extensions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.IO.FileSystem.Watcher.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.ComponentModel.Primitives.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Collections.Concurrent.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.FileSystemGlobbing.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Threading.Timer.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Threading.Overlapped.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\Microsoft.Win32.Primitives.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Text.Json.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Buffers.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Numerics.Vectors.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Runtime.CompilerServices.Unsafe.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Options.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Logging.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Logging.EventLog.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Logging.Configuration.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Options.ConfigurationExtensions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Logging.Console.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Logging.Debug.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Logging.EventSource.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Diagnostics.Tracing.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Diagnostics.DiagnosticSource.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Http.Features.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Http.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Connections.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Server.Kestrel.Transport.sockets.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Net.Primitives.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Hosting.Server.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.HostFiltering.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.HttpOverrides.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Routing.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.ObjectPool.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Routing.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.ObjectModel.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Authentication.Core.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Authentication.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Security.Claims.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Mvc.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'D:\MyData\TestCode\BlazorApp1\BlazorApp1\Server\bin\Debug\netcoreapp3.1\BlazorApp1.Server.Views.dll'. Symbols loaded.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Razor.Runtime.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Mvc.Razor.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Mvc.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Mvc.ApiExplorer.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Authorization.Policy.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Authorization.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Mvc.Cors.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Cors.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Mvc.DataAnnotations.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Mvc.ViewFeatures.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Linq.Expressions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Components.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.JSInterop.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.DataProtection.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.DataProtection.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Cryptography.Internal.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Antiforgery.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.WebEncoders.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Text.Encodings.Web.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Caching.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Caching.Memory.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Mvc.TagHelpers.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Razor.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Mvc.RazorPages.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Reflection.Emit.Lightweight.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Extensions.Localization.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Console.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\System.Diagnostics.EventLog.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Collections.Specialized.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.ComponentModel.TypeConverter.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\Microsoft.Win32.Registry.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Resources.ResourceManager.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Text.RegularExpressions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Reflection.Emit.ILGeneration.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Reflection.Primitives.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Diagnostics.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.HttpsPolicy.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'D:\MyData\TestCode\BlazorApp1\BlazorApp1\Server\bin\Debug\netcoreapp3.1\Microsoft.AspNetCore.Components.WebAssembly.Server.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.StaticFiles.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.Net.Http.Headers.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Drawing.Primitives.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Html.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Security.Principal.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.ComponentModel.Annotations.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'D:\MyData\TestCode\BlazorApp1\BlazorApp1\Server\bin\Debug\netcoreapp3.1\BlazorApp1.Shared.dll'. Symbols loaded.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Metadata.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.Diagnostics.Abstractions.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Threading.ThreadPool.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\system.io.pipelines.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Security.Cryptography.X509Certificates.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Diagnostics.Debug.dll'.
Microsoft.Hosting.Lifetime: information: Application started. Press Ctrl+C to shut down.
Microsoft.Hosting.Lifetime: information: Hosting environment: Development
Microsoft.Hosting.Lifetime: information: Content root path: D:\MyData\TestCode\BlazorApp1\BlazorApp1\Server
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Diagnostics.Process.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Collections.NonGeneric.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\3.1.8\Microsoft.AspNetCore.WebUtilities.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Net.WebSockets.dll'.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.8\System.Security.Principal.Windows.dll'.
The thread 0x5d2c has exited with code 0 (0x0).
The thread 0x62f8 has exited with code 0 (0x0).
The thread 0x1e40 has exited with code 0 (0x0).
编辑2
编辑3
我资助我更改应用程序的任何部分然后尝试对其进行调试，直到按f12才会显示。但是，如果按f12键并且不更改代码或应用程序的任何部分，则不需要f12键，它可以在应用程序的第二次运行中正常运行。
编辑4
脚本调试已被禁用。
编辑5
我启用然后禁用脚本调试，现在当我尝试运行应用程序时，出现此错误：
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