ASP.NET Core 应用启动时报错："Aborted (core dumped)"
0
悬赏园豆：30
[已解决问题]
解决于 2020-02-21 19:58
一个 asp.net core 应用在启动时失败退出，报错信息如下：
at Microsoft.AspNetCore.Hosting.ConfigureServicesBuilder.InvokeCore(Object instance, IServiceCollection services)
at Microsoft.AspNetCore.Hosting.ConfigureServicesBuilder.<>c__DisplayClass9_0.<Invoke>g__Startup|0(IServiceCollection serviceCollection)
at Microsoft.AspNetCore.Hosting.ConfigureServicesBuilder.Invoke(Object instance, IServiceCollection services)
at Microsoft.AspNetCore.Hosting.ConfigureServicesBuilder.<>c__DisplayClass8_0.<Build>b__0(IServiceCollection services)
at Microsoft.AspNetCore.Hosting.GenericWebHostBuilder.UseStartup(Type startupType, HostBuilderContext context, IServiceCollection services)
at Microsoft.AspNetCore.Hosting.GenericWebHostBuilder.<>c__DisplayClass12_0.<UseStartup>b__0(HostBuilderContext context, IServiceCollection services)
at Microsoft.Extensions.Hosting.HostBuilder.CreateServiceProvider()
at Microsoft.Extensions.Hosting.HostBuilder.Build()
at Cnblogs.WebAPI.Program.Main(String[] args) in /src/Cnblogs.WebAPI/Program.cs:line 12
Aborted (core dumped)Program.cs 中对应的第12号代码是
CreateHostBuilder(args).Build().Run();请问如何解决这个问题？
最佳答案
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是 Startup.ConfigureServices 中重复注册 HttpClient 的代码引起的，对同样的类型执行了2次 services.AddHttpClient 。
