Microsoft.AspNetCore.Server.Kestrel[0] Unable to start Kestrel

Question

when I run my image docker he give me this error

Microsoft.AspNetCore.Server.Kestrel[0]
      Unable to start Kestrel.
System.InvalidOperationException: HTTPS endpoints can only be configured using KestrelServerOptions.Listen().
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.BindAddressAsync(String address, AddressBindContext context)
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.AddressesStrategy.BindAsync(AddressBindContext context)
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.BindAsync(IServerAddressesFeature addresses, List`1 listenOptions, ILogger logger, Func`2 createBinding)
   at Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer.StartAsync[TContext](IHttpApplication`1 application, CancellationToken cancellationToken)

Unhandled Exception: System.InvalidOperationException: HTTPS endpoints can only be configured using KestrelServerOptions.Listen().
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.BindAddressAsync(String address, AddressBindContext context)
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.AddressesStrategy.BindAsync(AddressBindContext context)
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.BindAsync(IServerAddressesFeature addresses, List`1 listenOptions, ILogger logger, Func`2 createBinding)
   at Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer.StartAsync[TContext](IHttpApplication`1 application, CancellationToken cancellationToken)
   at Microsoft.AspNetCore.Hosting.Internal.WebHost.StartAsync(CancellationToken cancellationToken)
   at Microsoft.AspNetCore.Hosting.WebHostExtensions.RunAsync(IWebHost host, CancellationToken token, String shutdownMessage)
   at Microsoft.AspNetCore.Hosting.WebHostExtensions.RunAsync(IWebHost host, CancellationToken token)
   at Microsoft.AspNetCore.Hosting.WebHostExtensions.Run(IWebHost host)
   at Btorport.Web.Program.Main(String[] args) in /App/Btorport.Web/Program.cs:line 13

I think the problem with the certificate so I removed and I added from new by exec this command in my project -->

dotnet dev-certs https --clean
dotnet dev-certs https
dotnet dev-certs https --trust

But I am not using kestrul in my project I don't know why give me this error??

& this my BuildWebHost Methode

 return WebHost.CreateDefaultBuilder(args)
                .UseUrls("http://*:5050;https://*:5050")
                  .UseStartup<Startup>()
                  .Build();

https://stackoverflow.com/questions/46621788/how-to-use-https-ssl-with-kestrel-in-asp-net-core-2-x — Bugbeeb, Dec 01 '21 at 01:24

score 0 · Answer 1 · answered Dec 01 '21 at 07:28

You're specifying that it should use port 5050 for both http and https. That's not possible. It needs to be different ports.

For instance

return WebHost.CreateDefaultBuilder(args)
                .UseUrls("http://*:5050;https://*:5051")
                  .UseStartup<Startup>()
                  .Build();

Microsoft.AspNetCore.Server.Kestrel[0] Unable to start Kestrel

1 Answers1