ASP.Net Runtime Error:There is no build provider registered for the extension '.aspx'.you can register
one in the section in machine.config or web.config.Make sure is has a
BuildeProviderAppliesToAttribute attribute which includes the value 'Web' or 'All'. in visual studio 2010.
Brij MishraPosted Oct 3, 2013, 2:31 AM
1) If it only occurs on your current project, please check your project
web.config file.
Did you add the entry as below in your config file? If so, please remove it.
2) Otherwise, please check your web.config in the .net framewok folder
(C:\Windows\Microsoft.NET\Framework\[version]\CONFIG) if the issue occurs
on each web project on your side.
Is the following entry located in your config file? if not, please add it.
3) At last, if the issue still persists, please register build provider in
your project web.config file directly.
Hope this helps.