The site for the URL xxx exists on both the local IIS web server and the IIS Express web server.

E:\Work\Projects\Websites\Beta\abc.csproj :
error  : The site for the URL 'http://localhost:8007/',
configured for Web project 'abc', exists on both the local IIS web server and the IIS Express web server. You need to use IIS Manager to change this site's binding(s) in IIS.

Solution:
Duplicate binding
Remove 1 from IIS Manager