Unable to start debugging on the web server. The IIS worker process for the launched URL is not currently running [duplicate]

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Unable to start debugging on the web server. The IIS worker process for the launched URL is not currently running.

Hi, I'm using Visual Studio 2010 with ASP.NET webforms and IIS7.

I'm getting this error:

Unable to start debugging on the web server. The IIS worker process for the launched URL is not currently running.

When I launch the site I can see w3wp.exe process running. So what is the problem?

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Check out this KB from Microsoft and see if it helps:

http://support.microsoft.com/kb/814717

Also:

http://msdn.microsoft.com/en-us/library/dwesw3ee%28VS.71%29.aspx

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VS 2010 + IIS: Unable to start debugging on the web server. The IIS worker process for the launched URL is not currently running

Unable to start debugging on the web server. The IIS worker process for the launched URL is not currently running