Cleanup exception message when missing or incorrect configure method

[anandparanjape]

I was trying projectk Custom hosting with console app. I had added startup.cs file without Configure method. Custom host was not even starting. after adding Configure method, custom host started.
I can provide sample if needed.

[Eilon]

What's the actual result today? No error shows up at all? A bad error shows up?

[anandparanjape]

Eilon,

After adding try catch block, I got error like below. Error message can be polished by removing “TODO:”.
But I didn’t think of adding try catch block to see if code is throwing any error till you asked on this thread…
for me server was not starting ☹ and same code was working in CTP3.

"TODO: Configure or Configure method not found"
at Microsoft.AspNet.Hosting.Startup.StartupLoader.LoadStartup(String applicationName, String environmentName, IList`1 diagnosticMessages)
at Microsoft.AspNet.Hosting.Startup.StartupManager.LoadStartup(String applicationName, String environmentName)
at Microsoft.AspNet.Hosting.HostingEngine.EnsureApplicationStartup(HostingContext context)
at Microsoft.AspNet.Hosting.HostingEngine.EnsureApplicationDelegate(HostingContext context)
at Microsoft.AspNet.Hosting.HostingEngine.Start(HostingContext context)
at ConsoleAppWithMvcWebapi.Program.Main(String[] args)

-Anand

From: Eilon Lipton [mailto:notifications@github.com]
Sent: Thursday, September 18, 2014 1:00 PM
To: aspnet/Hosting
Cc: Anand Paranjape (ASP.NET)
Subject: Re: [Hosting] If startup.cs doesn't contain Configure method with correct Signature then it should throw meaningful error message (#76)

What's the actual result today? No error shows up at all? A bad error shows up?

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/76#issuecomment-56093506.

[Eilon]

You're saying that no error shows up at all by default? Does k web just exit immediately?

[glennc]

Triage: running k web on a startup without a configure shows the exception. Changing title to remove TODO from the text.