c# - 入口点在没有构建 IHost 的情况下退出

Question

我尝试运行集成测试并得到这个错误

System.InvalidOperationException: The entry point exited without ever building an IHost.at Microsoft.Extensions.Hosting.HostFactoryResolver.HostingListener.CreateHost()at Microsoft.Extensions.Hosting.HostFactoryResolver.<>c__DisplayClass10_0.b__0(String[] args)at Microsoft.AspNetCore.Mvc.Testing.DeferredHostBuilder.Build()at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory1.CreateHost(IHostBuilder builder) at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory1.ConfigureHostBuilder(IHostBuilder hostBuilder)at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory1.EnsureServer() at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory1.CreateDefaultClient(DelegatingHandler[] handlers)at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory1.CreateDefaultClient(Uri baseAddress, DelegatingHandler[] handlers) at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory1.CreateClient(WebApplicationFactoryClientOptions options)at Ptco.System.IntegrationTests.Infrastructure.IntegrationTestsWebFactory.CreteManagedClient() in C:\Users\nemes\Documents\GitHub\ptco.app\System\Ptco.System.IntegrationTests\Infrastructure\IntegrationTestsWebFactory.cs:line 249

第249行是

private HttpClient CreteManagedClient() =>
        CreateClient(new WebApplicationFactoryClientOptions
        {
            BaseAddress = new Uri(_configuration.GetValue<string>("IntegrationServerBaseUri"))
        });

是这样称呼的

     public IntegrationTestsWebFactory()
#pragma warning restore CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
        {
            _configurationPath = Path.Join(AppDomain.CurrentDomain.BaseDirectory, "appsettings.json");
            _configuration = BuildConfiguration();
            ManagedHttpClient = CreteManagedClient();
        }

我该如何解决这个错误？

Answer 1

它发生在我身上，因为我将 serilog 与 CreateBootstrapLogger() 一起使用。

这里是详细讨论https://github.com/serilog/serilog-aspnetcore/issues/289

对我来说，它与 CreateLogger 配合使用效果很好。在此处检查是否真的需要 CreateBootstrapLogger https://nblumhardt.com/2020/10/bootstrap-logger/#why-cant-we-just-do-both