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Parser Error Message Unrecognized Configuration Section System.web.extensions

Web Platform Installer Get Help: Ask a Question in our Forums More Help Resources Blogs Forums Home IIS.NET Forums IIS 7 and Above ASP.NET Administration The configuration section 'system.web.extensions' cannot be read beca... The configuration section 'system.web.extensions' cannot be read because it is missing a section declaration RSS 24 replies Last post Jan 05, 2015 06:51 PM by DeveloperAgain ‹ Previous Thread|Next Thread › Print Share Twitter Facebook Email Shortcuts Active Threads Unanswered Threads Unresolved Threads Advanced Search Reply petervdkerk 38 Posts The configuration section 'system.web.extensions' cannot be read because it is missing a section... Apr 15, 2010 05:13 PM|petervdkerk|LINK My system: I have installed Windows 7, VS2010 and .NET40 and ASPAJAXExtSetup.msi I used to work with vs2008 and .NET3.5, after installing VS2010 I upgraded to .NET40. I dont think that is the issue here, but it might be something you need to know :) My problem seems to arise from something within IIS, but I have no idea. I'm getting the error below.

Error Summary HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid.

Detailed Error Information

Module IIS Web Core Notification Unknown Handler Not yet determined Error Code 0x80070032 Config Error The configuration section 'system.web.extensions' cannot be read because it is missing a section declaration Config File \\?\C:\inetpub\tickets\web.config

Requested URL http://www.tickets.com:80/ Physical Path Logon Method Not yet determined Logon User Not yet determined

Config Source 45: 46: 47: My web.config: