Microsoft Visual Studio
Unable to start debugging on the web server. Debugging failed because integrated Windows authentication is not enabled. Please see Help for assistance.
This comes when integrated "Windows authentication" is disabled in IIS.
Go to IIS.
in websites right click the desired website on which error is coming , then select properties, then "Directory Security" tab, then "Edit..." under "Anonymous access and authentication control" section on selection this a dialog box will open check the "Integrated Window authentication" press ok, ok.
it will resolve the problem.