Erro ao executar Blog.exe

[eli-nascimento]

Olá Balta.

Ao executar um build e clicar no arquivo Blog.exe o console retorna um erro na linha do app.Run() e fecha
Falta alguma configuração para rodar corretamente ?

Segue o linha do console
Program.

$(String[] args) in C:\ExemploSource\Balta.io\2811-main\2811-main\Modulo 6\Blog\Program.cs:line 24.

[andrebaltieri]

Difícil saber o erro @eli-nascimento, tem que debugar pra ver com mais detalhes.
Só a linha que passou não dá informação suficiente para sabermos o que acontece.

[eli-nascimento]

Não alterei nada apenas baixei seu código de exemplo, executei um build, depois fui na pasta bin release e cliquei no Blog.exe, para abrir os swagger e usar sem o visual studio 2022. A unica coisa que conseguir verifica foi essa linha que abrir e fechar rapidamente o console retorna esse erro.
Consegui copiar todo os dados que são exibidos no console. segue:

Unhandled exception. System.IO.IOException: Failed to bind to address http://127.0.0.1:5000: address already in use.
---> Microsoft.AspNetCore.Connections.AddressInUseException: Only one usage of each socket address (protocol/network address/port) is normally permitted.
---> System.Net.Sockets.SocketException (10048): Only one usage of each socket address (protocol/network address/port) is normally permitted.
at System.Net.Sockets.Socket.UpdateStatusAfterSocketErrorAndThrowException(SocketError error, String callerName)
at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.Sockets.Socket.Bind(EndPoint localEP)
at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.SocketTransportOptions.CreateDefaultBoundListenSocket(EndPoint endpoint)
at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.SocketConnectionListener.Bind()
--- End of inner exception stack trace ---
at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.SocketConnectionListener.Bind()
at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.SocketTransportFactory.BindAsync(EndPoint endpoint, CancellationToken cancellationToken)
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Infrastructure.TransportManager.BindAsync(EndPoint endPoint, ConnectionDelegate connectionDelegate, EndpointConfig endpointConfig, CancellationToken cancellationToken)
at Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServerImpl.<>c__DisplayClass30_01.<<StartAsync>g__OnBind|0>d.MoveNext() --- End of stack trace from previous location --- at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.BindEndpointAsync(ListenOptions endpoint, AddressBindContext context, CancellationToken cancellationToken) --- End of inner exception stack trace --- at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.BindEndpointAsync(ListenOptions endpoint, AddressBindContext context, CancellationToken cancellationToken) at Microsoft.AspNetCore.Server.Kestrel.Core.LocalhostListenOptions.BindAsync(AddressBindContext context, CancellationToken cancellationToken) at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.DefaultAddressStrategy.BindAsync(AddressBindContext context, CancellationToken cancellationToken) at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.BindAsync(IEnumerable1 listenOptions, AddressBindContext context, CancellationToken cancellationToken)
at Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServerImpl.BindAsync(CancellationToken cancellationToken)
at Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServerImpl.StartAsync[TContext](IHttpApplication`1 application, CancellationToken cancellationToken)
at Microsoft.AspNetCore.Hosting.GenericWebHostService.StartAsync(CancellationToken cancellationToken)
at Microsoft.Extensions.Hosting.Internal.Host.StartAsync(CancellationToken cancellationToken)
at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.Run(IHost host)
at Microsoft.AspNetCore.Builder.WebApplication.Run(String url)
at Program.

$(String[] args) in C:\ExemploSource\Balta.io\2811-main\2811-main\Modulo 6\Blog\Program.cs:line 24

[andrebaltieri]

Boa noite, @eli-nascimento, acredito que já tenha outra aplicação rodando na porta 5000 e/ou 5001 como o erro informa.
Esta é a porta padrão que o .NET executa as aplicações, conforme menciono nos cursos.

Se for o caso, executa pelo VS, VS Code ou Rider que ele vai pegar uma porta aleatória.