The configuration section 'system.web.extensions' cannot be read because it is missing a section declaration

Question

I am getting error (The configuration section system.web.extensions cannot be read because it is missing a section declaration) while installin

Answer 1

c:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe -i

I tried this and it works good for me. Maybe helpful to someone.