Http Error 500.19 - Internal Server Error System.web.extensions

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up The configuration section 'system.web.extensions' cannot be read because it is missing a section declaration up vote 21 down vote favorite 8 I am getting error (The configuration section system.web.extensions cannot be read because it is missing a section declaration) while installing my Web Application in Server 2008 32 bit machine with .NET Framework 4.0. but it works well in 2008 r2 64 bit machine. This is my webconfig file info Any idea to get rid of this error? Note: I have checked all the related entries in Stack over flow but nothing was useful for me asp.net .net iis-7 web-co

ASP.NET Community Standup Forums Help Home/ASP.NET Forums/General ASP.NET/Configuration and Deployment/Error 500.19 - The configuration section 'system.web.extensions' cann... Error 500.19 - The configuration section 'system.web.extensions' cannot be read because it is missing a section declaration [Answered]RSS 4 replies Last post Jun 09, 2010 04:23 AM by bibis ‹ Previous Thread|Next Thread › Print http://stackoverflow.com/questions/20063861/the-configuration-section-system-web-extensions-cannot-be-read-because-it-is-m Share Twitter Facebook Email Shortcuts Active Threads Unanswered Threads Unresolved Threads Support Options Advanced Search Reply bibis None 0 Points 3 Posts Error 500.19 - The configuration section 'system.web.extensions' cannot be read because it is mis... Jun 08, 2010 06:26 AM|bibis|LINK Hey all, I http://forums.asp.net/t/1566645.aspx?Error+500+19+The+configuration+section+system+web+extensions+cannot+be+read+because+it+is+missing+a+section+declaration+ am running a 4.0 environment on my development machine (VS 2010 + .NET4) and my server (2008 SERVER + just installed .NET 40). On my dev environment, I don't get any errors, but with the same web config on the server, I get: Error 500.19 - The configuration section 'system.web.extensions' cannot be read because it is missing a section declaration. The applicationpool is using NET 4! THANKS !!!!! It's erroring at: