Kestrel Networking permission denied beta8 version

[damienbod]

I'm using ASP.NET 5 beta 8 and since I updated, my application won't start due to the following exception:

---

Microsoft.AspNet.Server.Kestrel.Networking.UvException: Error -4092 EACCES permission denied
at Microsoft.AspNet.Server.Kestrel.Networking.Libuv.Check(Int32 statusCode)
at Microsoft.AspNet.Server.Kestrel.Networking.Libuv.tcp_bind(UvTcpHandle handle, sockaddr& addr, Int32 flags)
at Microsoft.AspNet.Server.Kestrel.Networking.UvTcpHandle.Bind(String host, Int32 port)
at Microsoft.AspNet.Server.Kestrel.Http.TcpListener.CreateListenSocket(String host, Int32 port)
at Microsoft.AspNet.Server.Kestrel.Http.Listener.<>c__DisplayClass5_0.b__0(Object _)

---

Any ideas want is causing this or how this can be fixed?

src: https://github.com/damienbod/AspNet5Watcher/tree/updateBeta8

Greetings Damien

[NeelBhatt]

This might be useful for you:

aspnet/Hosting#364

[damienbod]

Hi NeelBhatt

Thanks for your answer. Kestrel is working fine, all my other ASP.NET beta8 applications are running fine from the console or using IIS express in Visual Studio. It's just this application, it has also a HTTP client, and SignalR

Greetings Damien

[davidfowl]

Maybe the port is in use?

[damienbod]

Hi David

Thanks for the tip. I changed the port number and it works. Thanks a million.

"web": "Microsoft.AspNet.Server.Kestrel --server.urls http://localhost:17202"

greetings Damien

[stajs]

I just hit this too. The stack trace shows it can't bind to the socket, but a better error message in this case would be helpful.

[razblack]

incase anyone else gets this Error -4092

when I setup the IIS i changed the bindings to the port i configured Kestrel to run on and it was throwing this error... I didn't realize IIS would act like a gateway for kestrel and setting a different binding port for IIS worked. I guess this is what they meant by using IIS as a proxy host.

[kspearrin]

I am having this same IIS Express issue within VS now that I updated to RC2. I have changed port numbers and deleted .vs folder without success. Any ideas? Starting up the application with the Project command works just fine.