Visual Studio调试新建Razor项目时出现404错误

多次在Visual Studio 2022和2019中创建默认模板的Razor项目，点击调试按钮后，控制台显示服务正常监听：

Microsoft.Hosting.Lifetime: Information: Now listening on: https://localhost:7277
Microsoft.Hosting.Lifetime: Information: Now listening on: http://localhost:5227
Microsoft.Hosting.Lifetime: Information: Application started. Press Ctrl+C to shut down.
Microsoft.Hosting.Lifetime: Information: Hosting environment: Development

但访问上述任一URL都会出现404错误。不过通过控制台执行dotnet run或dotnet watch命令时，项目可正常运行无404问题。

相关文件内容 #

launchSettings.json #

{
  "iisSettings": {
    "windowsAuthentication": false,
    "anonymousAuthentication": true,
    "iisExpress": {
      "applicationUrl": "http://localhost:25708",
      "sslPort": 44374
    }
  },
  "profiles": {
    "http": {
      "commandName": "Project",
      "dotnetRunMessages": true,
      "launchBrowser": true,
      "applicationUrl": "http://localhost:5227",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    },
    "https": {
      "commandName": "Project",
      "dotnetRunMessages": true,
      "launchBrowser": true,
      "applicationUrl": "https://localhost:7277;http://localhost:5227",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    },
    "IIS Express": {
      "commandName": "IISExpress",
      "launchBrowser": true,
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    }
  }
}

Program.cs #

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddRazorPages();

var app = builder.Build();

// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Error");
    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
    app.UseHsts();
}

app.UseHttpsRedirection();
app.UseStaticFiles();

app.UseRouting();

app.UseAuthorization();

app.MapRazorPages();

app.Run();

项目结构截图 #

• 文件夹结构：
• 调试bin目录：

已尝试重置VS设置并创建多个项目，但问题依旧。

内容的提问来源于stack exchange，提问作者Lawzzz