“Unable to start debugging” – VS2010 ASP.NET MVC 2

asp.net-mvc-2visual studio 2010

I can launch debug session only once with VS2010 and ASP.NET MVC2. When I end the first session and try to launch another I can see…

"Unable to start debugging" – no other messages, I'm using Visual Studio Development Server instead of IIS, Windows 7 64-bit

I can add that few days ago I was working on Windows XP and everything was fine.

I've tried running as admin (I thought there are any privileges issues) – no result
checked http://msdn.microsoft.com/en-us/library/dwesw3ee%28VS.71%29.aspx#vxtbshttpservererrorsthingstocheck (this page refers to IIS settings and I'm not using IIS)
I'm not satisfied with manually attaching – VS2010 is expensive IDE, it HAS TO work in this situation

Does anyone have some conclusions?

Best Answer

The problem auto-magically disappeared when:

I've turned off Debug > Edit and Continue option
Open vs2010 and run debug.
Turn off debug, shut down all launched WebServers (I had few of them for different services)
Close VS2010
Open VS2010.

After that everything works.

Related Solutions

Asp.net-mvc – Getting an ASP.MVC2/VS2010 application to work in IIS 7.5

I've just had this problem, and unfortunately the fix here didn't work for me.

What did work was running this:

%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe -ir

in a command window...works like a dream now!

(So, is ASP.Net not installed into IIS by default when you install VS2010?)

VS2010 Ultimate – Unable to launch ASP.NET Development Server

There are some things to check before listed here
Please eliminate issues on the link and check whether you may debug

Hope this helps
Myra

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